diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index e753c08f9de9fbbd0ef5993c957e17b6b4e95987..f4c86d48498559deab8abb8c556c3c6a76af80b7 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -8265,6 +8265,11 @@ static int32_t buildAddColReq(STranslateContext* pCxt, SAlterTableStmt* pStmt, S
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_DUPLICATED_COLUMN);
   }
 
+  if ((TSDB_DATA_TYPE_VARCHAR == pStmt->dataType.type && calcTypeBytes(pStmt->dataType) > TSDB_MAX_BINARY_LEN) ||
+      (TSDB_DATA_TYPE_NCHAR == pStmt->dataType.type && calcTypeBytes(pStmt->dataType) > TSDB_MAX_NCHAR_LEN)) {
+    return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_VAR_COLUMN_LEN);
+  }
+
   if (TSDB_MAX_COLUMNS == pTableMeta->tableInfo.numOfColumns) {
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_TOO_MANY_COLUMNS);
   }
diff --git a/tests/script/tsim/alter/table.sim b/tests/script/tsim/alter/table.sim
index dccfc7f5d6f9bf2afb71cd0c44dc85e722758538..a90d8f11b3c5079bb65fc28bdac5f57d3710d587 100644
--- a/tests/script/tsim/alter/table.sim
+++ b/tests/script/tsim/alter/table.sim
@@ -657,6 +657,15 @@ if $data20 != null then
   return -1
 endi
 
+print =============== error 
+sql create table tb2023(ts timestamp, f int);
+sql_error alter table tb2023 add column v varchar(16375);
+sql_error alter table tb2023 add column v varchar(16385);
+sql_error alter table tb2023 add column v varchar(33100);
+sql alter table tb2023 add column v varchar(16374);
+sql alter table tb2023 drop column v
+sql_error alter table tb2023 add column v nchar(4094);
+sql alter table tb2023 add column v nchar(4093);
 print ======= over
 sql drop database d1
 sql select * from information_schema.ins_databases