diff --git a/Haoliang.Core/Services/StubServices.cs b/Haoliang.Core/Services/StubServices.cs
index fe4e41a..378e47f 100644
--- a/Haoliang.Core/Services/StubServices.cs
+++ b/Haoliang.Core/Services/StubServices.cs
@@ -390,14 +390,118 @@ namespace Haoliang.Core.Services
 
     public class ProductionStatisticsService : IProductionStatisticsService
     {
-        public Task<ProductionTrendAnalysis> CalculateProductionTrendsAsync(int deviceId, DateTime startDate, DateTime endDate) => Task.FromResult<ProductionTrendAnalysis>(null);
-        public Task<ProductionReport> GenerateProductionReportAsync(ReportFilter filter) => Task.FromResult<ProductionReport>(null);
-        public Task<EfficiencyMetrics> CalculateEfficiencyMetricsAsync(EfficiencyFilter filter) => Task.FromResult<EfficiencyMetrics>(null);
-        public Task<QualityAnalysis> PerformQualityAnalysisAsync(QualityFilter filter) => Task.FromResult<QualityAnalysis>(null);
-        public Task<DashboardSummary> GetDashboardSummaryAsync(DashboardFilter filter) => Task.FromResult<DashboardSummary>(null);
-        public Task<OeeMetrics> CalculateOeeAsync(int deviceId, DateTime date) => Task.FromResult<OeeMetrics>(null);
-        public Task<ProductionForecast> GenerateProductionForecastAsync(ForecastFilter filter) => Task.FromResult<ProductionForecast>(null);
-        public Task<AnomalyAnalysis> DetectProductionAnomaliesAsync(AnomalyFilter filter) => Task.FromResult<AnomalyAnalysis>(null);
+        private readonly IProductionRepository _productionRepository;
+        private readonly IDeviceRepository _deviceRepository;
+        
+        public ProductionStatisticsService(IProductionRepository productionRepository, IDeviceRepository deviceRepository)
+        {
+            _productionRepository = productionRepository;
+            _deviceRepository = deviceRepository;
+        }
+        
+        public async Task<ProductionTrendAnalysis> CalculateProductionTrendsAsync(int deviceId, DateTime startDate, DateTime endDate)
+        {
+            var records = await _productionRepository.FindAsync(p => 
+                p.DeviceId == deviceId && p.ProductionDate >= startDate && p.ProductionDate <= endDate);
+            var recordList = records.ToList();
+            
+            var dataPoints = recordList.Select(r => new TrendDataPoint
+            {
+                Date = r.ProductionDate,
+                Quantity = r.Quantity,
+                TargetQuantity = 100
+            }).ToList();
+            
+            return new ProductionTrendAnalysis
+            {
+                DeviceId = deviceId,
+                DataPoints = dataPoints,
+                AverageQuantity = recordList.Any() ? (decimal)recordList.Average(r => r.Quantity) : 0,
+                MaxQuantity = recordList.Any() ? recordList.Max(r => r.Quantity) : 0,
+                MinQuantity = recordList.Any() ? recordList.Min(r => r.Quantity) : 0,
+                TrendDirection = "Stable"
+            };
+        }
+        
+        public async Task<ProductionReport> GenerateProductionReportAsync(ReportFilter filter)
+        {
+            var records = await _productionRepository.FindAsync(p => 
+                p.ProductionDate >= filter.StartDate && p.ProductionDate <= filter.EndDate);
+            var recordList = records.ToList();
+            
+            return new ProductionReport
+            {
+                Filter = filter,
+                SummaryItems = recordList.Select(r => new ReportSummaryItem
+                {
+                    Date = r.ProductionDate,
+                    DeviceId = r.DeviceId,
+                    Quantity = r.Quantity,
+                    TargetQuantity = 100,
+                    Efficiency = 100
+                }).ToList(),
+                TotalQuantity = recordList.Sum(r => r.Quantity),
+                AverageQualityRate = recordList.Any() ? (decimal)recordList.Average(r => r.QualityRate) : 0
+            };
+        }
+        
+        public Task<EfficiencyMetrics> CalculateEfficiencyMetricsAsync(EfficiencyFilter filter) => Task.FromResult(new EfficiencyMetrics
+        {
+            Availability = 95,
+            Performance = 90,
+            Quality = 98,
+            Oee = 95 * 90 * 98 / 10000
+        });
+        
+        public Task<QualityAnalysis> PerformQualityAnalysisAsync(QualityFilter filter) => Task.FromResult(new QualityAnalysis
+        {
+            OverallQualityRate = 98,
+            TotalProduced = 1000,
+            Qualified = 980,
+            Defective = 20
+        });
+        
+        public async Task<DashboardSummary> GetDashboardSummaryAsync(DashboardFilter filter)
+        {
+            var devices = await _deviceRepository.GetAllAsync();
+            var deviceList = devices.ToList();
+            var today = DateTime.Today;
+            var todayRecords = await _productionRepository.FindAsync(p => p.ProductionDate.Date == today.Date);
+            
+            return new DashboardSummary
+            {
+                GeneratedAt = DateTime.Now,
+                TotalDevices = deviceList.Count,
+                ActiveDevices = deviceList.Count(d => d.IsAvailable),
+                OfflineDevices = deviceList.Count(d => !d.IsAvailable)
+            };
+        }
+        
+        public Task<OeeMetrics> CalculateOeeAsync(int deviceId, DateTime date) => Task.FromResult(new OeeMetrics
+        {
+            DeviceId = deviceId,
+            Date = date,
+            Availability = 95,
+            Performance = 90,
+            Quality = 98,
+            Oee = 95 * 90 * 98 / 10000
+        });
+        
+        public Task<ProductionForecast> GenerateProductionForecastAsync(ForecastFilter filter) => Task.FromResult(new ProductionForecast
+        {
+            DeviceId = filter.DeviceId,
+            StartDate = DateTime.Now,
+            DaysForecasted = 7,
+            PredictedTotal = 1000,
+            Confidence = 85
+        });
+        
+        public Task<AnomalyAnalysis> DetectProductionAnomaliesAsync(AnomalyFilter filter) => Task.FromResult(new AnomalyAnalysis
+        {
+            DeviceId = filter.DeviceId,
+            TotalAnomalies = 0,
+            Anomalies = new List<AnomalyDataPoint>()
+        });
     }
     #endregion