diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
index c9463091a..da75a7c1c 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
@@ -344,6 +344,10 @@ namespace SqlSugar
             {
                 ids = ids.Select(it => Convert.ToInt64(it)).Cast<object>().ToList();
             }
+            if (navPkColumn?.UnderType?.Name == UtilConstants.StringType.Name)
+            {
+                ids = ids.Select(it => it?.ToString()?.Replace(",", "[comma]")).Cast<object>().ToList();
+            }
             conditionalModels.Add((new ConditionalModel()
             {
                 ConditionalType = ConditionalType.In,
@@ -415,6 +419,10 @@ namespace SqlSugar
             {
                 ids = ids.Select(it => Convert.ToInt64(it)).Cast<object>().ToList();
             }
+            if (navColumn?.UnderType?.Name == UtilConstants.StringType.Name)
+            {
+                ids = ids.Select(it => it?.ToString()?.Replace(",", "[comma]")).Cast<object>().ToList();
+            }
             conditionalModels.Add((new ConditionalModel()
             {
                 ConditionalType = ConditionalType.In,