diff --git a/colaflow-api/src/ColaFlow.API/Extensions/ModuleExtensions.cs b/colaflow-api/src/ColaFlow.API/Extensions/ModuleExtensions.cs
index 7d38065..d42b5ce 100644
--- a/colaflow-api/src/ColaFlow.API/Extensions/ModuleExtensions.cs
+++ b/colaflow-api/src/ColaFlow.API/Extensions/ModuleExtensions.cs
@@ -45,6 +45,7 @@ public static class ModuleExtensions
 
         // Register repositories
         services.AddScoped<IProjectRepository, ProjectRepository>();
+        services.AddScoped<IAuditLogRepository, ColaFlow.Modules.ProjectManagement.Infrastructure.Repositories.AuditLogRepository>();
         services.AddScoped<IUnitOfWork, ColaFlow.Modules.ProjectManagement.Infrastructure.Persistence.UnitOfWork>();
 
         // Register services
diff --git a/colaflow-api/src/Modules/ProjectManagement/ColaFlow.Modules.ProjectManagement.Domain/Repositories/IAuditLogRepository.cs b/colaflow-api/src/Modules/ProjectManagement/ColaFlow.Modules.ProjectManagement.Domain/Repositories/IAuditLogRepository.cs
new file mode 100644
index 0000000..ec35e1c
--- /dev/null
+++ b/colaflow-api/src/Modules/ProjectManagement/ColaFlow.Modules.ProjectManagement.Domain/Repositories/IAuditLogRepository.cs
@@ -0,0 +1,27 @@
+using ColaFlow.Modules.ProjectManagement.Domain.Entities;
+
+namespace ColaFlow.Modules.ProjectManagement.Domain.Repositories;
+
+public interface IAuditLogRepository
+{
+    Task<AuditLog?> GetByIdAsync(Guid id, CancellationToken cancellationToken = default);
+
+    Task<IReadOnlyList<AuditLog>> GetByEntityAsync(
+        string entityType,
+        Guid entityId,
+        CancellationToken cancellationToken = default);
+
+    Task<IReadOnlyList<AuditLog>> GetByUserAsync(
+        Guid userId,
+        int pageNumber = 1,
+        int pageSize = 50,
+        CancellationToken cancellationToken = default);
+
+    Task<IReadOnlyList<AuditLog>> GetRecentAsync(
+        int count = 100,
+        CancellationToken cancellationToken = default);
+
+    Task AddAsync(AuditLog auditLog, CancellationToken cancellationToken = default);
+
+    Task<int> GetCountAsync(CancellationToken cancellationToken = default);
+}
diff --git a/colaflow-api/src/Modules/ProjectManagement/ColaFlow.Modules.ProjectManagement.Infrastructure/Repositories/AuditLogRepository.cs b/colaflow-api/src/Modules/ProjectManagement/ColaFlow.Modules.ProjectManagement.Infrastructure/Repositories/AuditLogRepository.cs
new file mode 100644
index 0000000..8f570ce
--- /dev/null
+++ b/colaflow-api/src/Modules/ProjectManagement/ColaFlow.Modules.ProjectManagement.Infrastructure/Repositories/AuditLogRepository.cs
@@ -0,0 +1,72 @@
+using ColaFlow.Modules.ProjectManagement.Domain.Entities;
+using ColaFlow.Modules.ProjectManagement.Domain.Repositories;
+using ColaFlow.Modules.ProjectManagement.Infrastructure.Persistence;
+using Microsoft.EntityFrameworkCore;
+
+namespace ColaFlow.Modules.ProjectManagement.Infrastructure.Repositories;
+
+public class AuditLogRepository : IAuditLogRepository
+{
+    private readonly PMDbContext _context;
+
+    public AuditLogRepository(PMDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<AuditLog?> GetByIdAsync(Guid id, CancellationToken cancellationToken = default)
+    {
+        return await _context.AuditLogs
+            .AsNoTracking()
+            .FirstOrDefaultAsync(a => a.Id == id, cancellationToken);
+    }
+
+    public async Task<IReadOnlyList<AuditLog>> GetByEntityAsync(
+        string entityType,
+        Guid entityId,
+        CancellationToken cancellationToken = default)
+    {
+        return await _context.AuditLogs
+            .AsNoTracking()
+            .Where(a => a.EntityType == entityType && a.EntityId == entityId)
+            .OrderByDescending(a => a.Timestamp)
+            .ToListAsync(cancellationToken);
+    }
+
+    public async Task<IReadOnlyList<AuditLog>> GetByUserAsync(
+        Guid userId,
+        int pageNumber = 1,
+        int pageSize = 50,
+        CancellationToken cancellationToken = default)
+    {
+        return await _context.AuditLogs
+            .AsNoTracking()
+            .Where(a => a.UserId == userId)
+            .OrderByDescending(a => a.Timestamp)
+            .Skip((pageNumber - 1) * pageSize)
+            .Take(pageSize)
+            .ToListAsync(cancellationToken);
+    }
+
+    public async Task<IReadOnlyList<AuditLog>> GetRecentAsync(
+        int count = 100,
+        CancellationToken cancellationToken = default)
+    {
+        return await _context.AuditLogs
+            .AsNoTracking()
+            .OrderByDescending(a => a.Timestamp)
+            .Take(count)
+            .ToListAsync(cancellationToken);
+    }
+
+    public async Task AddAsync(AuditLog auditLog, CancellationToken cancellationToken = default)
+    {
+        await _context.AuditLogs.AddAsync(auditLog, cancellationToken);
+        await _context.SaveChangesAsync(cancellationToken);
+    }
+
+    public async Task<int> GetCountAsync(CancellationToken cancellationToken = default)
+    {
+        return await _context.AuditLogs.CountAsync(cancellationToken);
+    }
+}
diff --git a/docs/plans/sprint_2_story_1_task_2.md b/docs/plans/sprint_2_story_1_task_2.md
index 46a3e41..70f017e 100644
--- a/docs/plans/sprint_2_story_1_task_2.md
+++ b/docs/plans/sprint_2_story_1_task_2.md
@@ -1,9 +1,10 @@
 ---
 task_id: sprint_2_story_1_task_2
 story: sprint_2_story_1
-status: not_started
+status: in_progress
 estimated_hours: 4
 created_date: 2025-11-05
+start_date: 2025-11-05
 assignee: Backend Team
 ---