diff --git a/src/bin/pg_ctl/pg_ctl.cpp b/src/bin/pg_ctl/pg_ctl.cpp
index b13c58e85..84459bb4d 100644
--- a/src/bin/pg_ctl/pg_ctl.cpp
+++ b/src/bin/pg_ctl/pg_ctl.cpp
@@ -3410,7 +3410,7 @@ static void do_help(void)
              "                         (PostgreSQL server executable) or gs_initdb\n"));
     printf(_("  -p PATH-TO-POSTGRES    normally not necessary\n"));
     printf(_("\nOptions for stop or restart:\n"));
-    printf(_("  -m, --mode=MODE        MODE can be \"smart\", \"fast\", or \"immediate\"\n"));
+    printf(_("  -m, --mode=MODE        MODE can be \"fast\", or \"immediate\"\n"));
     printf(_("\nOptions for restore:\n"));
     printf(_("  --remove-backup        Remove the pg_rewind_bak dir after restore with \"restore\" command\n"));
 #ifdef ENABLE_MULTIPLE_NODES
@@ -3420,7 +3420,6 @@ static void do_help(void)
     printf(_("  -n NAME    patch name, NAME should be patch name with path\n"));
 #endif
     printf(_("\nShutdown modes are:\n"));
-    printf(_("  smart       quit with fast shutdown on primary, and recovery done on standby\n"));
     printf(_("  fast        quit directly, with proper shutdown\n"));
     printf(_("  immediate   quit without complete shutdown; will lead to recovery on restart\n"));
 
@@ -3479,12 +3478,7 @@ static void do_help(void)
 
 static void set_mode(char* modeopt)
 {
-    if (strcmp(modeopt, "s") == 0 || strcmp(modeopt, "smart") == 0) {
-        shutdown_mode = SMART_MODE;
-        stop_mode = "smart";
-        switch_mode = SmartDemote;
-        sig = SIGTERM;
-    } else if (strcmp(modeopt, "f") == 0 || strcmp(modeopt, "fast") == 0) {
+    if (strcmp(modeopt, "f") == 0 || strcmp(modeopt, "fast") == 0) {
         shutdown_mode = FAST_MODE;
         stop_mode = "fast";
         switch_mode = FastDemote;
diff --git a/src/gausskernel/optimizer/commands/shutdown.cpp b/src/gausskernel/optimizer/commands/shutdown.cpp
index c4f10abed..548d1db65 100644
--- a/src/gausskernel/optimizer/commands/shutdown.cpp
+++ b/src/gausskernel/optimizer/commands/shutdown.cpp
@@ -39,14 +39,12 @@ void DoShutdown(ShutdownStmt* stmt)
 
     if (shutdown_mode == NULL || strcmp(shutdown_mode, "fast") == 0) {
         /* default value is SIGINT, need to do nothing. */
-    } else if (strcmp(shutdown_mode, "smart") == 0) {
-        signal = SIGTERM;
     } else if (strcmp(shutdown_mode, "immediate") == 0) {
         signal = SIGQUIT;
     } else {
         ereport(ERROR,
             (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
-             errmsg("unknow parameter: %s\nshutdown only support fast, smart and immediate mode.\n", shutdown_mode)));
+             errmsg("unknow parameter: %s\nshutdown only support fast and immediate mode.\n", shutdown_mode)));
     }
 
     if (gs_signal_send(PostmasterPid, signal)) {
diff --git a/src/manager/om/script/gs_om b/src/manager/om/script/gs_om
index 7d32b9bf0..892c6b288 100644
--- a/src/manager/om/script/gs_om
+++ b/src/manager/om/script/gs_om
@@ -43,7 +43,6 @@ ACTION_REBUID = "generateconf"
 ACTION_CERT = "cert"
 STOP_MODE_FAST = "fast"
 STOP_MODE_IMMEDIATE = "immediate"
-STOP_MODE_SMART = "smart"
 ACTION_VIEW = "view"
 ACTION_QUERY = "query"
 ACTION_KERBEROS = "kerberos"
@@ -153,7 +152,7 @@ Options for start
 Options for stop
   -h                              Name of the host to be shut down.
   -m, --mode=MODE                 Shutdown mode. It can be f (fast),
-                                  i (immediate), or s (smart).
+                                  or i (immediate).
   -D                              Path of dn
     --time-out=SECS              Maximum waiting time when start the cluster
                                  or node.
@@ -572,16 +571,9 @@ Install options:
             self.g_opts.mode = STOP_MODE_FAST
         # Specifies that the stop type must be f, i or s
         if (self.g_opts.mode not in [STOP_MODE_FAST, STOP_MODE_IMMEDIATE,
-                                     STOP_MODE_SMART, "f", "i", "s"]):
+                                     "f", "i"]):
             GaussLog.exitWithError(ErrorCode.GAUSS_500["GAUSS_50004"] % "m")
 
-        # cm_ctl: can't stop one node or instance with -m smart.
-        if (self.g_opts.nodeName != "" and self.g_opts.mode ==
-                STOP_MODE_SMART):
-            GaussLog.exitWithError(ErrorCode.GAUSS_500["GAUSS_50010"] % \
-                                   "-m" + "Can't stop one node with -m smart "
-                                          "mode.")
-
     def checkOutFileParameter(self):
         """
         Check parameter for status
diff --git a/src/test/regress/expected/shutdown.out b/src/test/regress/expected/shutdown.out
index 7fa100177..8de530125 100644
--- a/src/test/regress/expected/shutdown.out
+++ b/src/test/regress/expected/shutdown.out
@@ -16,5 +16,5 @@ ERROR:  Only system admin can shutdown database.
 DROP USER shutdown_test;
 shutdown invalid_str;
 ERROR:  unknow parameter: invalid_str
-shutdown only support fast, smart and immediate mode.
+shutdown only support fast and immediate mode.