diff --git a/backend/src/entities/parents.entity.ts b/backend/src/entities/parents.entity.ts
index 5f55d44..ea1db0e 100644
--- a/backend/src/entities/parents.entity.ts
+++ b/backend/src/entities/parents.entity.ts
@@ -5,6 +5,7 @@ import {
 import { Users } from './users.entity';
 import { ParentsChildren } from './parents_children.entity';
 import { Dossier } from './dossiers.entity';
+import { AmChildren } from './am_children.entity';
 
 @Entity('parents', { schema: 'public' })
 export class Parents {
@@ -25,6 +26,17 @@ export class Parents {
   @Column({ name: 'numero_dossier', length: 20, nullable: true })
   numero_dossier?: string;
 
+  /**
+   * Placement AM↔enfant sélectionné sur le TdB parent (couple actif) — ticket #168.
+   * Null / absent = le front prend le premier couple actif retourné par l’API.
+   */
+  @Column({ name: 'id_placement_garde_courant', type: 'uuid', nullable: true })
+  id_placement_garde_courant?: string;
+
+  @ManyToOne(() => AmChildren, { nullable: true, onDelete: 'SET NULL' })
+  @JoinColumn({ name: 'id_placement_garde_courant', referencedColumnName: 'id' })
+  placement_garde_courant?: AmChildren;
+
   // Lien vers enfants via la table enfants_parents
   @OneToMany(() => ParentsChildren, pc => pc.parent)
   parentChildren: ParentsChildren[];
diff --git a/backend/src/routes/parents/dto/couples-garde.dto.ts b/backend/src/routes/parents/dto/couples-garde.dto.ts
new file mode 100644
index 0000000..15a13ce
--- /dev/null
+++ b/backend/src/routes/parents/dto/couples-garde.dto.ts
@@ -0,0 +1,61 @@
+import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
+
+/** Identité minimale enfant pour le bandeau couple — ticket #168 */
+export class CoupleGardeEnfantDto {
+  @ApiProperty({ format: 'uuid' })
+  id: string;
+
+  @ApiPropertyOptional()
+  prenom?: string | null;
+
+  @ApiPropertyOptional()
+  nom?: string | null;
+
+  @ApiPropertyOptional()
+  photo_url?: string | null;
+}
+
+/** Identité minimale AM pour le bandeau couple — ticket #168 */
+export class CoupleGardeAmDto {
+  @ApiProperty({ format: 'uuid', description: 'UUID utilisateur de l’AM' })
+  id: string;
+
+  @ApiPropertyOptional()
+  prenom?: string | null;
+
+  @ApiPropertyOptional()
+  nom?: string | null;
+
+  @ApiPropertyOptional()
+  photo_url?: string | null;
+}
+
+/** Un couple de garde = placement actif enfant ↔ AM */
+export class CoupleGardeDto {
+  @ApiProperty({
+    format: 'uuid',
+    description: 'Id du placement (enfants_assistantes_maternelles.id)',
+  })
+  id: string;
+
+  @ApiProperty({ type: CoupleGardeEnfantDto })
+  enfant: CoupleGardeEnfantDto;
+
+  @ApiProperty({ type: CoupleGardeAmDto })
+  am: CoupleGardeAmDto;
+
+  @ApiProperty({ description: 'True si c’est le couple actuellement sélectionné' })
+  courant: boolean;
+}
+
+export class CouplesGardeResponseDto {
+  @ApiProperty({ type: [CoupleGardeDto] })
+  couples: CoupleGardeDto[];
+
+  @ApiPropertyOptional({
+    format: 'uuid',
+    nullable: true,
+    description: 'Id du couple courant (null si aucun / premier couple implicite côté client)',
+  })
+  couple_courant_id: string | null;
+}
diff --git a/backend/src/routes/parents/dto/definir-couple-garde-courant.dto.ts b/backend/src/routes/parents/dto/definir-couple-garde-courant.dto.ts
new file mode 100644
index 0000000..004bdbc
--- /dev/null
+++ b/backend/src/routes/parents/dto/definir-couple-garde-courant.dto.ts
@@ -0,0 +1,13 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsNotEmpty, IsUUID } from 'class-validator';
+
+/** Corps PUT couple de garde courant — ticket #168 */
+export class DefinirCoupleGardeCourantDto {
+  @ApiProperty({
+    format: 'uuid',
+    description: 'Id du placement (enfants_assistantes_maternelles.id) à sélectionner',
+  })
+  @IsUUID()
+  @IsNotEmpty()
+  couple_id: string;
+}
diff --git a/backend/src/routes/parents/parents.controller.spec.ts b/backend/src/routes/parents/parents.controller.spec.ts
index 4452cd6..8fc4f4f 100644
--- a/backend/src/routes/parents/parents.controller.spec.ts
+++ b/backend/src/routes/parents/parents.controller.spec.ts
@@ -13,7 +13,10 @@ describe('ParentsController', () => {
     createParentDossierStaff: jest.fn(),
     addCoParentStaff: jest.fn(),
   };
-  const parentsServiceMock = {};
+  const parentsServiceMock = {
+    listerCouplesGarde: jest.fn(),
+    definirCoupleGardeCourant: jest.fn(),
+  };
   const userServiceMock = {};
 
   beforeEach(async () => {
@@ -39,6 +42,31 @@ describe('ParentsController', () => {
     expect(controller).toBeDefined();
   });
 
+  it('listerCouplesGarde délègue au service (#168)', async () => {
+    parentsServiceMock.listerCouplesGarde.mockResolvedValue({
+      couples: [],
+      couple_courant_id: null,
+    });
+    const res = await controller.listerCouplesGarde('parent-uuid');
+    expect(parentsServiceMock.listerCouplesGarde).toHaveBeenCalledWith('parent-uuid');
+    expect(res.couples).toEqual([]);
+  });
+
+  it('definirCoupleGardeCourant délègue au service (#168)', async () => {
+    parentsServiceMock.definirCoupleGardeCourant.mockResolvedValue({
+      couples: [{ id: 'pl-1', courant: true }],
+      couple_courant_id: 'pl-1',
+    });
+    const res = await controller.definirCoupleGardeCourant('parent-uuid', {
+      couple_id: 'pl-1',
+    });
+    expect(parentsServiceMock.definirCoupleGardeCourant).toHaveBeenCalledWith(
+      'parent-uuid',
+      'pl-1',
+    );
+    expect(res.couple_courant_id).toBe('pl-1');
+  });
+
   it('createDossier delegates to authService.createParentDossierStaff with CGU accepted', async () => {
     authServiceMock.createParentDossierStaff.mockResolvedValue({
       message: 'Dossier famille créé et validé. Un e-mail de création de mot de passe a été envoyé.',
diff --git a/backend/src/routes/parents/parents.controller.ts b/backend/src/routes/parents/parents.controller.ts
index 1567509..9dd4c78 100644
--- a/backend/src/routes/parents/parents.controller.ts
+++ b/backend/src/routes/parents/parents.controller.ts
@@ -8,6 +8,7 @@ import {
   Param,
   Patch,
   Post,
+  Put,
   UseGuards,
 } from '@nestjs/common';
 import { ParentsService } from './parents.service';
@@ -39,6 +40,8 @@ import { User } from 'src/common/decorators/user.decorator';
 import { PendingFamilyDto } from './dto/pending-family.dto';
 import { DossierFamilleCompletDto } from './dto/dossier-famille-complet.dto';
 import { mapParentForApi, mapParentsForApi } from './parents.mapper';
+import { CouplesGardeResponseDto } from './dto/couples-garde.dto';
+import { DefinirCoupleGardeCourantDto } from './dto/definir-couple-garde-courant.dto';
 
 @ApiTags('Parents')
 @ApiBearerAuth('access-token')
@@ -51,6 +54,39 @@ export class ParentsController {
     private readonly authService: AuthService,
   ) {}
 
+  @Get('me/couples-garde')
+  @Roles(RoleType.PARENT)
+  @ApiOperation({
+    summary: 'Lister les couples de garde du parent connecté — ticket #168',
+    description:
+      'Retourne les placements actifs enfant↔AM rattachés au parent, ' +
+      'avec indication du couple courant (bandeau TdB quotidien).',
+  })
+  @ApiResponse({ status: 200, type: CouplesGardeResponseDto })
+  @ApiResponse({ status: 403, description: 'Réservé au rôle parent' })
+  @ApiResponse({ status: 404, description: 'Parent introuvable' })
+  listerCouplesGarde(@User('id') userId: string): Promise<CouplesGardeResponseDto> {
+    return this.parentsService.listerCouplesGarde(userId);
+  }
+
+  @Put('me/couples-garde/courant')
+  @Roles(RoleType.PARENT)
+  @ApiOperation({
+    summary: 'Définir le couple de garde courant — ticket #168',
+    description:
+      'Persiste la préférence de couple actif (enfant|nounou) pour contextualiser le TdB.',
+  })
+  @ApiBody({ type: DefinirCoupleGardeCourantDto })
+  @ApiResponse({ status: 200, type: CouplesGardeResponseDto })
+  @ApiResponse({ status: 400, description: 'Couple hors périmètre du parent' })
+  @ApiResponse({ status: 404, description: 'Parent ou couple introuvable' })
+  definirCoupleGardeCourant(
+    @User('id') userId: string,
+    @Body() dto: DefinirCoupleGardeCourantDto,
+  ): Promise<CouplesGardeResponseDto> {
+    return this.parentsService.definirCoupleGardeCourant(userId, dto.couple_id);
+  }
+
   @Roles(RoleType.SUPER_ADMIN, RoleType.ADMINISTRATEUR, RoleType.GESTIONNAIRE)
   @Post('dossier')
   @HttpCode(HttpStatus.CREATED)
diff --git a/backend/src/routes/parents/parents.module.ts b/backend/src/routes/parents/parents.module.ts
index 35aeb2e..4826f10 100644
--- a/backend/src/routes/parents/parents.module.ts
+++ b/backend/src/routes/parents/parents.module.ts
@@ -5,6 +5,7 @@ import { JwtModule } from '@nestjs/jwt';
 import { Parents } from 'src/entities/parents.entity';
 import { DossierFamille, DossierFamilleEnfant } from 'src/entities/dossier_famille.entity';
 import { ParentsChildren } from 'src/entities/parents_children.entity';
+import { AmChildren } from 'src/entities/am_children.entity';
 import { ParentsController } from './parents.controller';
 import { ParentsService } from './parents.service';
 import { Users } from 'src/entities/users.entity';
@@ -13,7 +14,14 @@ import { AuthModule } from '../auth/auth.module';
 
 @Module({
     imports: [
-        TypeOrmModule.forFeature([Parents, Users, DossierFamille, DossierFamilleEnfant, ParentsChildren]),
+        TypeOrmModule.forFeature([
+            Parents,
+            Users,
+            DossierFamille,
+            DossierFamilleEnfant,
+            ParentsChildren,
+            AmChildren,
+        ]),
         forwardRef(() => UserModule),
         forwardRef(() => AuthModule),
         JwtModule.registerAsync({
diff --git a/backend/src/routes/parents/parents.service.spec.ts b/backend/src/routes/parents/parents.service.spec.ts
index 83b23f2..a1569c9 100644
--- a/backend/src/routes/parents/parents.service.spec.ts
+++ b/backend/src/routes/parents/parents.service.spec.ts
@@ -1,12 +1,43 @@
+import { BadRequestException, NotFoundException } from '@nestjs/common';
 import { Test, TestingModule } from '@nestjs/testing';
+import { getRepositoryToken } from '@nestjs/typeorm';
 import { ParentsService } from './parents.service';
+import { Parents } from 'src/entities/parents.entity';
+import { Users } from 'src/entities/users.entity';
+import { DossierFamille } from 'src/entities/dossier_famille.entity';
+import { ParentsChildren } from 'src/entities/parents_children.entity';
+import { AmChildren } from 'src/entities/am_children.entity';
 
-describe('ParentsService', () => {
+describe('ParentsService — couples de garde (#168)', () => {
   let service: ParentsService;
 
+  const parentsRepository = {
+    findOne: jest.fn(),
+    update: jest.fn(),
+  };
+  const parentsChildrenRepository = {
+    find: jest.fn(),
+    findOne: jest.fn(),
+  };
+  const amChildrenRepository = {
+    find: jest.fn(),
+    findOne: jest.fn(),
+  };
+
   beforeEach(async () => {
+    jest.clearAllMocks();
     const module: TestingModule = await Test.createTestingModule({
-      providers: [ParentsService],
+      providers: [
+        ParentsService,
+        { provide: getRepositoryToken(Parents), useValue: parentsRepository },
+        { provide: getRepositoryToken(Users), useValue: {} },
+        { provide: getRepositoryToken(DossierFamille), useValue: {} },
+        {
+          provide: getRepositoryToken(ParentsChildren),
+          useValue: parentsChildrenRepository,
+        },
+        { provide: getRepositoryToken(AmChildren), useValue: amChildrenRepository },
+      ],
     }).compile();
 
     service = module.get<ParentsService>(ParentsService);
@@ -15,4 +46,107 @@ describe('ParentsService', () => {
   it('should be defined', () => {
     expect(service).toBeDefined();
   });
+
+  describe('listerCouplesGarde', () => {
+    it('retourne une liste vide si le parent n’a pas d’enfant', async () => {
+      parentsRepository.findOne.mockResolvedValue({
+        user_id: 'p1',
+        id_placement_garde_courant: null,
+      });
+      parentsChildrenRepository.find.mockResolvedValue([]);
+
+      const res = await service.listerCouplesGarde('p1');
+      expect(res).toEqual({ couples: [], couple_courant_id: null });
+      expect(amChildrenRepository.find).not.toHaveBeenCalled();
+    });
+
+    it('mappe les placements actifs en couples et marque le courant', async () => {
+      parentsRepository.findOne.mockResolvedValue({
+        user_id: 'p1',
+        id_placement_garde_courant: 'pl-2',
+      });
+      parentsChildrenRepository.find.mockResolvedValue([
+        { enfantId: 'e1' },
+        { enfantId: 'e2' },
+      ]);
+      amChildrenRepository.find.mockResolvedValue([
+        {
+          id: 'pl-1',
+          amId: 'am-1',
+          child: { id: 'e1', first_name: 'Léo', last_name: 'M', photo_url: null },
+          am: { user: { prenom: 'Marie', nom: 'N', photo_url: '/a.jpg' } },
+        },
+        {
+          id: 'pl-2',
+          amId: 'am-2',
+          child: { id: 'e2', first_name: 'Léa', last_name: 'M', photo_url: null },
+          am: { user: { prenom: 'Sophie', nom: 'P', photo_url: null } },
+        },
+      ]);
+
+      const res = await service.listerCouplesGarde('p1');
+      expect(res.couples).toHaveLength(2);
+      expect(res.couple_courant_id).toBe('pl-2');
+      expect(res.couples[1].courant).toBe(true);
+      expect(res.couples[0].am.prenom).toBe('Marie');
+      expect(res.couples[0].enfant.prenom).toBe('Léo');
+    });
+
+    it('404 si parent inconnu', async () => {
+      parentsRepository.findOne.mockResolvedValue(null);
+      await expect(service.listerCouplesGarde('x')).rejects.toBeInstanceOf(
+        NotFoundException,
+      );
+    });
+  });
+
+  describe('definirCoupleGardeCourant', () => {
+    it('persiste le couple si l’enfant est rattaché au parent', async () => {
+      parentsRepository.findOne.mockResolvedValue({
+        user_id: 'p1',
+        id_placement_garde_courant: null,
+      });
+      amChildrenRepository.findOne.mockResolvedValue({
+        id: 'pl-1',
+        enfantId: 'e1',
+        date_fin: null,
+      });
+      parentsChildrenRepository.findOne.mockResolvedValue({
+        parentId: 'p1',
+        enfantId: 'e1',
+      });
+      parentsRepository.update.mockResolvedValue({ affected: 1 });
+      // second call via listerCouplesGarde
+      parentsChildrenRepository.find.mockResolvedValue([{ enfantId: 'e1' }]);
+      amChildrenRepository.find.mockResolvedValue([
+        {
+          id: 'pl-1',
+          amId: 'am-1',
+          child: { id: 'e1', first_name: 'Léo', last_name: null, photo_url: null },
+          am: { user: { prenom: 'Marie', nom: null, photo_url: null } },
+        },
+      ]);
+
+      const res = await service.definirCoupleGardeCourant('p1', 'pl-1');
+      expect(parentsRepository.update).toHaveBeenCalledWith(
+        { user_id: 'p1' },
+        { id_placement_garde_courant: 'pl-1' },
+      );
+      expect(res.couple_courant_id).toBe('pl-1');
+      expect(res.couples[0].courant).toBe(true);
+    });
+
+    it('400 si le couple n’appartient pas au parent', async () => {
+      parentsRepository.findOne.mockResolvedValue({ user_id: 'p1' });
+      amChildrenRepository.findOne.mockResolvedValue({
+        id: 'pl-1',
+        enfantId: 'e99',
+      });
+      parentsChildrenRepository.findOne.mockResolvedValue(null);
+
+      await expect(
+        service.definirCoupleGardeCourant('p1', 'pl-1'),
+      ).rejects.toBeInstanceOf(BadRequestException);
+    });
+  });
 });
diff --git a/backend/src/routes/parents/parents.service.ts b/backend/src/routes/parents/parents.service.ts
index 8adf1ef..c1205b0 100644
--- a/backend/src/routes/parents/parents.service.ts
+++ b/backend/src/routes/parents/parents.service.ts
@@ -5,7 +5,7 @@ import {
   NotFoundException,
 } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
-import { In, Repository } from 'typeorm';
+import { In, IsNull, Repository } from 'typeorm';
 import { Parents } from 'src/entities/parents.entity';
 import { DossierFamille } from 'src/entities/dossier_famille.entity';
 import { RoleType, Users } from 'src/entities/users.entity';
@@ -20,6 +20,8 @@ import {
 import { ParentsChildren } from 'src/entities/parents_children.entity';
 import { Children } from 'src/entities/children.entity';
 import { UpdateParentFicheAdminDto } from './dto/update-parent-fiche-admin.dto';
+import { AmChildren } from 'src/entities/am_children.entity';
+import { CouplesGardeResponseDto } from './dto/couples-garde.dto';
 
 @Injectable()
 export class ParentsService {
@@ -32,6 +34,8 @@ export class ParentsService {
     private readonly dossierFamilleRepository: Repository<DossierFamille>,
     @InjectRepository(ParentsChildren)
     private readonly parentsChildrenRepository: Repository<ParentsChildren>,
+    @InjectRepository(AmChildren)
+    private readonly amChildrenRepository: Repository<AmChildren>,
   ) {}
 
   // Création d’un parent
@@ -505,4 +509,108 @@ export class ParentsService {
     }
     return raw.map((r: { id: string }) => r.id);
   }
+
+  /**
+   * Liste les couples de garde (enfant ↔ AM) du parent connecté — ticket #168.
+   * Un couple = un placement actif dans enfants_assistantes_maternelles pour un enfant du parent.
+   */
+  async listerCouplesGarde(parentUserId: string): Promise<CouplesGardeResponseDto> {
+    const parent = await this.parentsRepository.findOne({
+      where: { user_id: parentUserId },
+    });
+    if (!parent) {
+      throw new NotFoundException('Parent introuvable');
+    }
+
+    const liensEnfants = await this.parentsChildrenRepository.find({
+      where: { parentId: parentUserId },
+      select: ['enfantId'],
+    });
+    const enfantIds = liensEnfants.map((l) => l.enfantId);
+    if (enfantIds.length === 0) {
+      return { couples: [], couple_courant_id: null };
+    }
+
+    const placements = await this.amChildrenRepository.find({
+      where: { enfantId: In(enfantIds), date_fin: IsNull() },
+      relations: ['child', 'am', 'am.user'],
+      order: { date_debut: 'ASC' },
+    });
+
+    let idCourant = parent.id_placement_garde_courant ?? null;
+    const idsValides = new Set(placements.map((p) => p.id));
+    if (idCourant && !idsValides.has(idCourant)) {
+      idCourant = null;
+      await this.parentsRepository.update(
+        { user_id: parentUserId },
+        { id_placement_garde_courant: () => 'NULL' },
+      );
+    }
+    if (!idCourant && placements.length === 1) {
+      idCourant = placements[0].id;
+    }
+
+    const couples = placements.map((p) => {
+      const amUser = p.am?.user;
+      return {
+        id: p.id,
+        enfant: {
+          id: p.child.id,
+          prenom: p.child.first_name ?? null,
+          nom: p.child.last_name ?? null,
+          photo_url: p.child.photo_url ?? null,
+        },
+        am: {
+          id: p.amId,
+          prenom: amUser?.prenom ?? null,
+          nom: amUser?.nom ?? null,
+          photo_url: amUser?.photo_url ?? null,
+        },
+        courant: idCourant != null && p.id === idCourant,
+      };
+    });
+
+    return {
+      couples,
+      couple_courant_id: idCourant,
+    };
+  }
+
+  /**
+   * Persiste le couple de garde actif pour le parent — ticket #168.
+   */
+  async definirCoupleGardeCourant(
+    parentUserId: string,
+    coupleId: string,
+  ): Promise<CouplesGardeResponseDto> {
+    const parent = await this.parentsRepository.findOne({
+      where: { user_id: parentUserId },
+    });
+    if (!parent) {
+      throw new NotFoundException('Parent introuvable');
+    }
+
+    const placement = await this.amChildrenRepository.findOne({
+      where: { id: coupleId, date_fin: IsNull() },
+    });
+    if (!placement) {
+      throw new NotFoundException('Couple de garde introuvable ou inactif');
+    }
+
+    const lien = await this.parentsChildrenRepository.findOne({
+      where: { parentId: parentUserId, enfantId: placement.enfantId },
+    });
+    if (!lien) {
+      throw new BadRequestException(
+        'Ce couple ne concerne pas un enfant rattaché à ce parent',
+      );
+    }
+
+    await this.parentsRepository.update(
+      { user_id: parentUserId },
+      { id_placement_garde_courant: coupleId },
+    );
+
+    return this.listerCouplesGarde(parentUserId);
+  }
 }
diff --git a/database/BDD.sql b/database/BDD.sql
index c4e63ab..11aff46 100644
--- a/database/BDD.sql
+++ b/database/BDD.sql
@@ -154,7 +154,10 @@ CREATE INDEX idx_assistantes_maternelles_numero_dossier
 CREATE TABLE parents (
     id_utilisateur UUID PRIMARY KEY REFERENCES utilisateurs(id) ON DELETE CASCADE,
     id_co_parent UUID REFERENCES utilisateurs(id),
-    numero_dossier VARCHAR(20)
+    numero_dossier VARCHAR(20),
+    -- Préférence couple de garde actif (TdB quotidien) — ticket #168
+    -- FK ajoutée après création de enfants_assistantes_maternelles (voir ALTER plus bas)
+    id_placement_garde_courant UUID
 );
 
 CREATE INDEX idx_parents_numero_dossier
@@ -206,6 +209,16 @@ CREATE UNIQUE INDEX uq_enfant_garde_active
     ON enfants_assistantes_maternelles (id_enfant)
     WHERE date_fin IS NULL;
 
+-- FK couple courant parent → placement (#168) — après table enfants_assistantes_maternelles
+ALTER TABLE parents
+  ADD CONSTRAINT fk_parents_placement_garde_courant
+  FOREIGN KEY (id_placement_garde_courant)
+  REFERENCES enfants_assistantes_maternelles(id) ON DELETE SET NULL;
+
+CREATE INDEX idx_parents_placement_garde_courant
+  ON parents(id_placement_garde_courant)
+  WHERE id_placement_garde_courant IS NOT NULL;
+
 -- ==========================================================
 -- Table : dossier_famille (inscription parent — ticket #119)
 -- ==========================================================
diff --git a/database/migrations/2026_parent_placement_garde_courant.sql b/database/migrations/2026_parent_placement_garde_courant.sql
new file mode 100644
index 0000000..4e46422
--- /dev/null
+++ b/database/migrations/2026_parent_placement_garde_courant.sql
@@ -0,0 +1,10 @@
+-- Ticket #168 — Couple de garde courant (préférence parent)
+-- Idempotent : safe à rejouer.
+
+ALTER TABLE parents
+  ADD COLUMN IF NOT EXISTS id_placement_garde_courant UUID
+    REFERENCES enfants_assistantes_maternelles(id) ON DELETE SET NULL;
+
+CREATE INDEX IF NOT EXISTS idx_parents_placement_garde_courant
+  ON parents(id_placement_garde_courant)
+  WHERE id_placement_garde_courant IS NOT NULL;