diff --git a/src/inc/taoserror.h b/src/inc/taoserror.h
index e069d0295ac5b08c0ff38cc09e90eb5b56817e7b..8daccee1f255e5956bb8308bac5d8d05d1088642 100644
--- a/src/inc/taoserror.h
+++ b/src/inc/taoserror.h
@@ -187,6 +187,8 @@ int32_t* taosGetErrno();
 
 #define TSDB_CODE_MND_INVALID_TOPIC             TAOS_DEF_ERROR_CODE(0, 0x0392)  //"Invalid topic name)
 #define TSDB_CODE_MND_INVALID_TOPIC_OPTION      TAOS_DEF_ERROR_CODE(0, 0x0393)  //"Invalid topic option)
+#define TSDB_CODE_MND_INVALID_TOPIC_PARTITONS   TAOS_DEF_ERROR_CODE(0, 0x0394)  //"Invalid topic partitons num, valid range: [1, 1000])
+#define TSDB_CODE_MND_TOPIC_ALREADY_EXIST       TAOS_DEF_ERROR_CODE(0, 0x0395)  //"Topic already exists)
 
 // dnode
 #define TSDB_CODE_DND_MSG_NOT_PROCESSED         TAOS_DEF_ERROR_CODE(0, 0x0400)  //"Message not processed")
diff --git a/src/util/src/terror.c b/src/util/src/terror.c
index 221e6183909682680b68c7a0debb2a90eca34c37..918ccc493543c785313df67c7f2a8eced6ba8fb7 100644
--- a/src/util/src/terror.c
+++ b/src/util/src/terror.c
@@ -199,6 +199,8 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_DB_OPTION_KEEP,   "Invalid database opti
 
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_TOPIC,            "Invalid topic name")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_TOPIC_OPTION,     "Invalid topic option")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_TOPIC_PARTITONS,  "Invalid topic partitons num, valid range: [1, 1000]")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_TOPIC_ALREADY_EXIST,      "Topic already exists")
 
 // dnode
 TAOS_DEFINE_ERROR(TSDB_CODE_DND_MSG_NOT_PROCESSED,        "Message not processed")
diff --git a/tests/script/general/db/topic1.sim b/tests/script/general/db/topic1.sim
index cdfb8ea2ec33a5322ab34de6d2688ef0dc1fc64f..55349fd925f0c2f723a6df7ab64dbd97bc043e04 100644
--- a/tests/script/general/db/topic1.sim
+++ b/tests/script/general/db/topic1.sim
@@ -842,4 +842,28 @@ if $rows != 10 then
   return -1
 endi
 
+sql drop topic t1
+
+print ============== create same name topic
+sql create database d2
+sql create topic t2
+
+sql_error create topic d2
+sql_error create topic if not exists d2
+sql_error create topic t2
+sql       create topic if not exists t2
+sql_error create topic t2 partitions 5;
+sql_error create topic t2 partitions 6;
+sql_error create topic t2 partitions 3;
+
+sql_error alter topic t3 partitions 1
+sql_error alter topic d2 partitions 1
+sql_error alter topic t2 partitions 0
+sql_error alter topic t2 partitions 10000
+
+sql_error drop topic d2
+sql_error drop topic d3
+sql       drop database d2
+sql       drop database t2
+
 system sh/exec.sh -n dnode1 -s stop -x SIGINT