diff --git a/dialects/mysql.go b/dialects/mysql.go
index 1fad3fee..58499ea6 100644
--- a/dialects/mysql.go
+++ b/dialects/mysql.go
@@ -304,6 +304,7 @@ func (db *mysql) SQLType(c *schemas.Column) string {
 		c.Length = 40
 	case schemas.Json:
 		res = schemas.Text
+		c.IsJSON = true
 	case schemas.UnsignedInt:
 		res = schemas.Int
 		isUnsigned = true
diff --git a/session_insert.go b/session_insert.go
index fc025613..30b897e5 100644
--- a/session_insert.go
+++ b/session_insert.go
@@ -501,6 +501,10 @@ func (session *Session) genInsertColumns(bean interface{}) ([]string, []interfac
 			continue
 		}
 
+		if col.IsJSON && fieldValue.String() == "" {
+			continue
+		}
+
 		// !evalphobia! set fieldValue as nil when column is nullable and zero-value
 		if _, ok := getFlagForColumn(session.statement.NullableMap, col); ok {
 			if col.Nullable && utils.IsValueZero(fieldValue) {