diff --git a/src/main/java/com/rte_france/antares/datamanager_back/controller/ProjectController.java b/src/main/java/com/rte_france/antares/datamanager_back/controller/ProjectController.java
index e13c358..ab78cb8 100644
--- a/src/main/java/com/rte_france/antares/datamanager_back/controller/ProjectController.java
+++ b/src/main/java/com/rte_france/antares/datamanager_back/controller/ProjectController.java
@@ -63,4 +63,9 @@ public ResponseEntity<ProjectDto> findProjectById(@PathVariable Integer id) {
         return new ResponseEntity<>(toProjectDto(projectService.findProjectById(id)), HttpStatus.OK);
     }
 
+    @Operation(summary = "Delete project if it contains no studies")
+    @DeleteMapping("/{id}")
+    public void deleteProject(@PathVariable Integer id) {
+        projectService.deleteProjectById(id);
+    }
 }
diff --git a/src/main/java/com/rte_france/antares/datamanager_back/repository/model/ProjectEntity.java b/src/main/java/com/rte_france/antares/datamanager_back/repository/model/ProjectEntity.java
index f80d058..480f48b 100644
--- a/src/main/java/com/rte_france/antares/datamanager_back/repository/model/ProjectEntity.java
+++ b/src/main/java/com/rte_france/antares/datamanager_back/repository/model/ProjectEntity.java
@@ -5,7 +5,9 @@
 import lombok.*;
 
 import java.time.LocalDateTime;
+import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Set;
 
 @Getter
 @Setter
@@ -42,4 +44,8 @@ public class ProjectEntity {
     @CollectionTable(name = "project_tags", joinColumns = @JoinColumn(name = "project_id"))
     @Column(name = "tag")
     private List<String> tags;
+
+    @OneToMany(mappedBy = "project", cascade = CascadeType.ALL, orphanRemoval = true)
+    private Set<PinnedProjectEntity> pinnedProjectEntities = new LinkedHashSet<>();
+
 }
\ No newline at end of file
diff --git a/src/main/java/com/rte_france/antares/datamanager_back/service/ProjectService.java b/src/main/java/com/rte_france/antares/datamanager_back/service/ProjectService.java
index 19f3c54..7623eba 100644
--- a/src/main/java/com/rte_france/antares/datamanager_back/service/ProjectService.java
+++ b/src/main/java/com/rte_france/antares/datamanager_back/service/ProjectService.java
@@ -18,6 +18,8 @@ public interface ProjectService {
 
     ProjectEntity pinProjectForUser(String userId, Integer projectId);
 
+    void deleteProjectById(Integer projectId);
+
 
 }
 
diff --git a/src/main/java/com/rte_france/antares/datamanager_back/service/impl/ProjectServiceImpl.java b/src/main/java/com/rte_france/antares/datamanager_back/service/impl/ProjectServiceImpl.java
index 45210d1..8cf3879 100644
--- a/src/main/java/com/rte_france/antares/datamanager_back/service/impl/ProjectServiceImpl.java
+++ b/src/main/java/com/rte_france/antares/datamanager_back/service/impl/ProjectServiceImpl.java
@@ -147,6 +147,16 @@ public ProjectEntity pinProjectForUser(String userId, Integer projectId) {
         return project;
     }
 
+    @Override
+    public void deleteProjectById(Integer projectId) {
+        ProjectEntity project = projectRepository.findById(projectId)
+                .orElseThrow(() -> new ResourceNotFoundException("Project not found with ID: " + projectId));
+        if (project.getStudies() != null && !project.getStudies().isEmpty()) {
+            throw new BadRequestException("Project contains studies and cannot be deleted");
+        }
+        projectRepository.deleteById(projectId);
+    }
+
     private void checkIfUserHasALreadyMaxPinnedProjects(String userId) {
         List<PinnedProjectEntity> pinnedProjects = pinnedProjectRepository.findById_Nni(userId);
         if (pinnedProjects.size() >= 3) {
diff --git a/src/test/java/com/rte_france/antares/datamanager_back/controller/ProjectControllerTest.java b/src/test/java/com/rte_france/antares/datamanager_back/controller/ProjectControllerTest.java
index 273b909..59fd65e 100644
--- a/src/test/java/com/rte_france/antares/datamanager_back/controller/ProjectControllerTest.java
+++ b/src/test/java/com/rte_france/antares/datamanager_back/controller/ProjectControllerTest.java
@@ -2,6 +2,7 @@
 
 import com.rte_france.antares.datamanager_back.dto.ProjectDto;
 import com.rte_france.antares.datamanager_back.exception.BadRequestException;
+import com.rte_france.antares.datamanager_back.exception.ResourceNotFoundException;
 import com.rte_france.antares.datamanager_back.repository.model.ProjectEntity;
 import com.rte_france.antares.datamanager_back.service.ProjectService;
 import org.junit.jupiter.api.BeforeEach;
@@ -155,5 +156,36 @@ void findProjectById_returnsProjectDtoWhenProjectExists() throws Exception {
                 .andExpect(jsonPath("$.name").value("name2050"))
                 .andExpect(jsonPath("$.description").value("project2050"));
     }
+@Test
+void deleteProject_returnsNoContentWhenProjectDeleted() throws Exception {
+    Integer projectId = 1;
 
+    doNothing().when(projectService).deleteProjectById(projectId);
+
+    mockMvc.perform(delete("/v1/project/{id}", projectId)
+                    .contentType(MediaType.APPLICATION_JSON))
+            .andExpect(status().isOk());
+}
+
+@Test
+void deleteProject_returnsNotFoundWhenProjectDoesNotExist() throws Exception {
+    Integer projectId = 1;
+
+    doThrow(new ResourceNotFoundException("Project not found")).when(projectService).deleteProjectById(projectId);
+
+    mockMvc.perform(delete("/v1/project/{id}", projectId)
+                    .contentType(MediaType.APPLICATION_JSON))
+            .andExpect(status().isNotFound());
+}
+
+@Test
+void deleteProject_returnsBadRequestWhenProjectContainsStudies() throws Exception {
+    Integer projectId = 1;
+
+    doThrow(new BadRequestException("Project contains studies and cannot be deleted")).when(projectService).deleteProjectById(projectId);
+
+    mockMvc.perform(delete("/v1/project/{id}", projectId)
+                    .contentType(MediaType.APPLICATION_JSON))
+            .andExpect(status().isInternalServerError());
+}
 }
\ No newline at end of file
diff --git a/src/test/java/com/rte_france/antares/datamanager_back/service/ProjectServiceImplTest.java b/src/test/java/com/rte_france/antares/datamanager_back/service/ProjectServiceImplTest.java
index dec2326..d593466 100644
--- a/src/test/java/com/rte_france/antares/datamanager_back/service/ProjectServiceImplTest.java
+++ b/src/test/java/com/rte_france/antares/datamanager_back/service/ProjectServiceImplTest.java
@@ -213,4 +213,50 @@ void pinProjectForUser_throwsExceptionWhenUserHasMaxPinnedProjects() {
         assertEquals("You have already 3 pinned projects , please unpin one before pinning another one.", exception.getMessage());
         verify(pinnedProjectRepository, never()).save(any(PinnedProjectEntity.class));
     }
+
+    @Test
+void deleteProjectById_deletesProjectWhenNoStudies() {
+    Integer projectId = 1;
+    ProjectEntity project = new ProjectEntity();
+    project.setId(projectId);
+
+    when(projectRepository.findById(projectId)).thenReturn(Optional.of(project));
+
+    projectService.deleteProjectById(projectId);
+
+    verify(projectRepository, times(1)).deleteById(projectId);
+}
+
+@Test
+void deleteProjectById_throwsExceptionWhenProjectNotFound() {
+    Integer projectId = 1;
+
+    when(projectRepository.findById(projectId)).thenReturn(Optional.empty());
+
+    ResourceNotFoundException exception = assertThrows(
+            ResourceNotFoundException.class,
+            () -> projectService.deleteProjectById(projectId)
+    );
+
+    assertEquals("Project not found with ID: 1", exception.getMessage());
+    verify(projectRepository, never()).deleteById(projectId);
+}
+
+@Test
+void deleteProjectById_throwsExceptionWhenProjectContainsStudies() {
+    Integer projectId = 1;
+    ProjectEntity project = new ProjectEntity();
+    project.setId(projectId);
+    project.setStudies(List.of(new StudyEntity()));
+
+    when(projectRepository.findById(projectId)).thenReturn(Optional.of(project));
+
+    BadRequestException exception = assertThrows(
+            BadRequestException.class,
+            () -> projectService.deleteProjectById(projectId)
+    );
+
+    assertEquals("Project contains studies and cannot be deleted", exception.getMessage());
+    verify(projectRepository, never()).deleteById(projectId);
+}
 }