diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLInsertBuilder.cs b/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLInsertBuilder.cs
index 00fc65f46..d0a3af9f1 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLInsertBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLInsertBuilder.cs
@@ -131,7 +131,7 @@ namespace SqlSugar
                 var type = value.GetType();
                 if (type == UtilConstants.ByteArrayType||type == UtilConstants.DateType || columnInfo.IsArray || columnInfo.IsJson)
                 {
-                    var parameterName = this.Builder.SqlParameterKeyWord + name + i;
+                    var parameterName = this.Builder.SqlParameterKeyWord + name+"_" + i;
                     var paramter = new SugarParameter(parameterName, value);
                     if (columnInfo.IsJson)
                     {
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLUpdateBuilder.cs b/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLUpdateBuilder.cs
index 6c76f7ee9..64225d199 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLUpdateBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLUpdateBuilder.cs
@@ -45,7 +45,7 @@ namespace SqlSugar
                 var type =UtilMethods.GetUnderType(value.GetType());
                 if (type == UtilConstants.ByteArrayType||type == UtilConstants.DateType||columnInfo.IsArray||columnInfo.IsJson)
                 {
-                    var parameterName = this.Builder.SqlParameterKeyWord + name + i;
+                    var parameterName = this.Builder.SqlParameterKeyWord + name +"_"+ i;
                     var paramter = new SugarParameter(parameterName, value);
                     if (columnInfo.IsJson) 
                     {