diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
index 9703bf32c..6bdcb014f 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
@@ -281,6 +281,7 @@ namespace SqlSugar
                         column.IsOnlyIgnoreUpdate = sugarColumn.IsOnlyIgnoreUpdate;
                         column.IsArray = sugarColumn.IsArray;
                         column.IsTreeKey = sugarColumn.IsTreeKey;
+                        column.SqlParameterDbType = sugarColumn.SqlParameterDbType;
                     }
                     else
                     {
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
index ab6757d27..221e187fa 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
@@ -263,7 +263,7 @@ namespace SqlSugar
                 resolveExpress.SqlFuncServices = Context.CurrentConnectionConfig.ConfigureExternalServices == null ? null : Context.CurrentConnectionConfig.ConfigureExternalServices.SqlFuncServices;
             };
             resolveExpress.Resolve(expression, resolveType);
-            this.Parameters.AddRange(resolveExpress.Parameters.Select(it => new SugarParameter(it.ParameterName, it.Value)));
+            this.Parameters.AddRange(resolveExpress.Parameters.Select(it => new SugarParameter(it.ParameterName, it.Value,it.DbType)));
             var result = resolveExpress.Result;
             var isSingleTableHasSubquery = IsSingle() && resolveExpress.SingleTableNameSubqueryShortName.HasValue();
             if (isSingleTableHasSubquery)
diff --git a/Src/Asp.NetCore2/SqlSugar/Entities/EntityColumnInfo.cs b/Src/Asp.NetCore2/SqlSugar/Entities/EntityColumnInfo.cs
index 80ef3a714..6f6627677 100644
--- a/Src/Asp.NetCore2/SqlSugar/Entities/EntityColumnInfo.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Entities/EntityColumnInfo.cs
@@ -21,6 +21,7 @@ namespace SqlSugar
         public bool IsPrimarykey { get; set; }
         public bool IsTreeKey { get; set; }
         public bool IsEnableUpdateVersionValidation { get; set; }
+        public object SqlParameterDbType { get; set; }
         public string EntityName { get;  set; }
         public string DbTableName { get; set; }
         public bool IsIgnore { get;  set; }
diff --git a/Src/Asp.NetCore2/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs b/Src/Asp.NetCore2/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs
index ce2e87111..145504385 100644
--- a/Src/Asp.NetCore2/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs
@@ -196,6 +196,8 @@ namespace SqlSugar
             get { return _IsTreeKey; }
             set { _IsTreeKey = value; }
         }
+
+        public object SqlParameterDbType { get; set; }
     }
 
 
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
index 636982de4..8d331ef00 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
@@ -170,7 +170,15 @@ namespace SqlSugar
                         + Context.ParameterIndex;
                     if (value.ObjToString() != "NULL" && !parameter.ValueIsNull)
                     {
-                        this.Context.Parameters.Add(new SugarParameter(appendValue, value));
+                        EntityColumnInfo columnInfo = GetColumnInfo(oppoSiteExpression);
+                        if (columnInfo != null && columnInfo.SqlParameterDbType != null&& columnInfo.SqlParameterDbType is  System.Data.DbType)
+                        {
+                            this.Context.Parameters.Add(new SugarParameter(appendValue, value, (System.Data.DbType)columnInfo.SqlParameterDbType));
+                        }
+                        else
+                        {
+                            this.Context.Parameters.Add(new SugarParameter(appendValue, value));
+                        }
                     }
                     else
                     {
@@ -251,6 +259,19 @@ namespace SqlSugar
                 }
             }
         }
+
+        private EntityColumnInfo GetColumnInfo(Expression oppoSiteExpression)
+        {
+            var oppsite = (oppoSiteExpression as MemberExpression);
+            if (oppsite == null) return null;
+            if (this.Context.SugarContext == null) return null;
+            if (this.Context.SugarContext.Context == null) return null;
+            if (oppsite.Expression == null) return null;
+            var columnInfo = this.Context.SugarContext.Context.EntityMaintenance
+                .GetEntityInfo(oppsite.Expression.Type).Columns.FirstOrDefault(it => it.PropertyName == oppsite.Member.Name);
+            return columnInfo;
+        }
+
         protected void AppendOpreator(ExpressionParameter parameter, bool? isLeft)
         {
             if (isLeft == true)