diff --git a/DOAN.Admin.WebApi/Controllers/MES/SmartScreen/Quality/QualitySmartController.cs b/DOAN.Admin.WebApi/Controllers/MES/SmartScreen/Quality/QualitySmartController.cs
index 0ee7399..5df9b26 100644
--- a/DOAN.Admin.WebApi/Controllers/MES/SmartScreen/Quality/QualitySmartController.cs
+++ b/DOAN.Admin.WebApi/Controllers/MES/SmartScreen/Quality/QualitySmartController.cs
@@ -75,5 +75,18 @@ namespace DOAN.Admin.WebApi.Controllers.MES.SmartScreen.Quality
 			var response = _QualitySmartService.GetQualitySmartScreenForBarChart();
 			return SUCCESS(response);
 		}
+
+		/// <summary>
+		/// 按月获取质量大屏数据折线图
+		/// </summary>
+		/// <returns></returns>
+		[HttpGet("GetQualitySmartScreenForLineChart")]
+		[AllowAnonymous]
+		public IActionResult GetQualitySmartScreenForLineChart()
+		{
+
+			var response = _QualitySmartService.GetQualitySmartScreenForLineChart();
+			return SUCCESS(response);
+		}
 	}
 }
diff --git a/DOAN.Service/MES/SmartScreen/Quality/IService/IQualitySmartService.cs b/DOAN.Service/MES/SmartScreen/Quality/IService/IQualitySmartService.cs
index 25cf09f..ae3bfae 100644
--- a/DOAN.Service/MES/SmartScreen/Quality/IService/IQualitySmartService.cs
+++ b/DOAN.Service/MES/SmartScreen/Quality/IService/IQualitySmartService.cs
@@ -13,12 +13,9 @@ namespace DOAN.Service.MES.SmartScreen.Quality.IService
 	public interface IQualitySmartService : IBaseService<QcFinishedproductDefectCollection>
 	{
 		QualityScreenHeadDto GetQualityScreenHead();
-
 		List<EchartsSeriesData> GetQualitySmartScreenForWeek();
 		List<EchartsSeriesData> GetQualitySmartScreenForMonth();
-
-		//barchart EchartsOptions
-
 		EchartsOptions GetQualitySmartScreenForBarChart();
+		EchartsOptions GetQualitySmartScreenForLineChart();
 	}
 }
diff --git a/DOAN.Service/MES/SmartScreen/Quality/QualitySmartService.cs b/DOAN.Service/MES/SmartScreen/Quality/QualitySmartService.cs
index a15741a..ffbaf27 100644
--- a/DOAN.Service/MES/SmartScreen/Quality/QualitySmartService.cs
+++ b/DOAN.Service/MES/SmartScreen/Quality/QualitySmartService.cs
@@ -140,7 +140,7 @@ namespace DOAN.Service.MES.SmartScreen.Quality
 				dateList.Add(date); // 使用标准日期格式
 			}
 
-
+		
 
 			EchartsOptions echartsOptions = new EchartsOptions();
 			EchartsXAxis echartsXAxis = new EchartsXAxis();
@@ -171,11 +171,10 @@ namespace DOAN.Service.MES.SmartScreen.Quality
 				foreach (var dateitem in dateList)
 				{
 					DateTime startOfDay = dateitem.Date;
-
-					// 结束时间：当天的 23:59:59
 					DateTime endOfDay = startOfDay.AddDays(1).AddSeconds(-1);
 					EchartsSeriesData echartsSeriesData = new EchartsSeriesData();
 					echartsSeriesData.Name = dateitem.ToString("MM-dd");
+
 					echartsSeriesData.Value =Convert.ToDecimal(qcFinishedproductDefectCollections.Where(o=>o.DefectName==classitem&&o.CheckDatetime >= startOfDay && o.CheckDatetime<= endOfDay).Sum(o=>o.Number));
 					echartsSeriesDatas.Add(echartsSeriesData);
 
@@ -186,5 +185,73 @@ namespace DOAN.Service.MES.SmartScreen.Quality
 			echartsOptions.Series = echartsSeriesList;
 			return echartsOptions;
 		}
+
+		public EchartsOptions GetQualitySmartScreenForLineChart()
+		{
+			// 获取当前日期
+			DateTime now = DateTime.Now;
+			// 当前月份的第一天 00:00:00
+			DateTime firstDayOfMonth = new DateTime(now.Year, now.Month, 1);
+			// 当前月份的最后一天 23:59:59
+			DateTime lastDayOfMonth = new DateTime(now.Year, now.Month, 1)
+				.AddMonths(1)
+				.AddSeconds(-1);
+			// 创建字符串集合存储日期
+			List<DateTime> dateList = new List<DateTime>();
+
+			// 遍历从第一天到最后一天的日期
+			for (DateTime date = firstDayOfMonth; date <= lastDayOfMonth; date = date.AddDays(1))
+			{
+				dateList.Add(date); // 使用标准日期格式
+			}
+
+			List<ProWorkorder> proWorkorders = Context.Queryable<ProWorkorder>().Where(o => o.WorkorderDate >= firstDayOfMonth && o.WorkorderDate <= lastDayOfMonth).ToList();
+
+			EchartsOptions echartsOptions = new EchartsOptions();
+			EchartsXAxis echartsXAxis = new EchartsXAxis();
+
+			List<string> dateStringList = new List<string>();
+			foreach (var date in dateList)
+			{
+				dateStringList.Add(date.ToString("MM-dd"));
+			}
+			echartsXAxis.Data = dateStringList;
+			echartsOptions.XAxis = echartsXAxis;
+
+
+			List<EchartsSeries> echartsSeriesList = new List<EchartsSeries>();
+
+			// 使用 SqlSugar 进行联表查询和分组统计
+			List<QcFinishedproductDefectCollection> qcFinishedproductDefectCollections = Context.Queryable<QcFinishedproductDefectCollection>()
+				.Where(defect => defect.CheckDatetime >= firstDayOfMonth && defect.CheckDatetime <= lastDayOfMonth).ToList();
+
+
+			List<string> classname = qcFinishedproductDefectCollections.Select(o => o.DefectName).Distinct().ToList();
+
+			foreach (var classitem in classname)
+			{
+				EchartsSeries echartsSeries = new EchartsSeries();
+				echartsSeries.Name = classitem;
+				List<EchartsSeriesData> echartsSeriesDatas = new List<EchartsSeriesData>();
+				foreach (var dateitem in dateList)
+				{
+					
+					DateTime startOfDay = dateitem.Date;
+					DateTime endOfDay = startOfDay.AddDays(1).AddSeconds(-1);
+					decimal plannum =Convert.ToDecimal(proWorkorders.Where(o => o.WorkorderDate >= startOfDay && o.WorkorderDate <= endOfDay).Sum(o=>o.PlanNum));
+					decimal nopassnum= Convert.ToDecimal(qcFinishedproductDefectCollections.Where(o => o.DefectName == classitem && o.CheckDatetime >= startOfDay && o.CheckDatetime <= endOfDay).Sum(o => o.Number));
+					decimal passnum = plannum - nopassnum;
+					EchartsSeriesData echartsSeriesData = new EchartsSeriesData();
+					echartsSeriesData.Name = dateitem.ToString("MM-dd");
+					echartsSeriesData.Value = passnum/ plannum;
+					echartsSeriesDatas.Add(echartsSeriesData);
+
+				}
+				echartsSeries.Data = echartsSeriesDatas;
+				echartsSeriesList.Add(echartsSeries);
+			}
+			echartsOptions.Series = echartsSeriesList;
+			return echartsOptions;
+		}
 	}
 }