diff --git a/docs/source/guides/admin-guides/references/man1/rspconfig.1.rst b/docs/source/guides/admin-guides/references/man1/rspconfig.1.rst
index d85e1eb50..70deaa8c0 100644
--- a/docs/source/guides/admin-guides/references/man1/rspconfig.1.rst
+++ b/docs/source/guides/admin-guides/references/man1/rspconfig.1.rst
@@ -83,6 +83,10 @@ OpenBMC specific:
 
 \ **rspconfig**\  \ *noderange*\  \ **sshcfg**\ 
 
+\ **rspconfig**\  \ *noderange*\  \ **thermalmode**\ 
+
+\ **rspconfig**\  \ *noderange*\  \ **thermalmode={default|custom|heavy_io|max_base_fan_floor}**\ 
+
 \ **rspconfig**\  \ *noderange*\  \ **timesyncmethod**\ 
 
 \ **rspconfig**\  \ *noderange*\  \ **timesyncmethod={manual|ntp}**\ 
@@ -521,6 +525,12 @@ OPTIONS
  
 
 
+\ **thermalmode**\ 
+ 
+ Display or set the thermal mode of the system to a setting, depending on your system, adapter, and cable type. After a factory reset of the system, the thermal mode setting is lost and must be reapplied. To choose the correct setting for your system, see https://www.ibm.com/support/knowledgecenter/POWER9/p9ei3/p9ei3_thermal_mode.htm [OpenBMC]
+ 
+
+
 \ **timesyncmethod**\ 
  
  Set the method for time synchronization on the BMC. [OpenBMC]
diff --git a/perl-xCAT/xCAT/Usage.pm b/perl-xCAT/xCAT/Usage.pm
index d40c13600..3b3b60d06 100755
--- a/perl-xCAT/xCAT/Usage.pm
+++ b/perl-xCAT/xCAT/Usage.pm
@@ -193,6 +193,8 @@ my %usage = (
        rspconfig <noderange> timesyncmethod={ntp|manual}
        rspconfig <noderange> bootmode
        rspconfig <noderange> bootmode={safe|regular|setup}
+       rspconfig <noderange> thermalmode
+       rspconfig <noderange> thermalmode={default|custom|heavy_io|max_base_fan_floor}
        rspconfig <noderange> autoreboot
        rspconfig <noderange> autoreboot={0|1}
 ",
diff --git a/xCAT-client/pods/man1/rspconfig.1.pod b/xCAT-client/pods/man1/rspconfig.1.pod
index b4cd8b4d3..0087291bf 100644
--- a/xCAT-client/pods/man1/rspconfig.1.pod
+++ b/xCAT-client/pods/man1/rspconfig.1.pod
@@ -60,6 +60,10 @@ B<rspconfig> I<noderange> B<powersupplyredundancy={disabled|enabled}>
 
 B<rspconfig> I<noderange> B<sshcfg>
 
+B<rspconfig> I<noderange> B<thermalmode>
+
+B<rspconfig> I<noderange> B<thermalmode={default|custom|heavy_io|max_base_fan_floor}>
+
 B<rspconfig> I<noderange> B<timesyncmethod>
 
 B<rspconfig> I<noderange> B<timesyncmethod={manual|ntp}>
@@ -402,6 +406,10 @@ B<-d> will download a single dump or all generated dumps from the BMC to /var/lo
 
 =back
 
+=item B<thermalmode>
+
+Display or set the thermal mode of the system to a setting, depending on your system, adapter, and cable type. After a factory reset of the system, the thermal mode setting is lost and must be reapplied. To choose the correct setting for your system, see https://www.ibm.com/support/knowledgecenter/POWER9/p9ei3/p9ei3_thermal_mode.htm [OpenBMC]
+
 =item B<timesyncmethod>
 
 Set the method for time synchronization on the BMC. [OpenBMC]
diff --git a/xCAT-server/lib/xcat/plugins/openbmc.pm b/xCAT-server/lib/xcat/plugins/openbmc.pm
index d406cbed9..70afac5df 100644
--- a/xCAT-server/lib/xcat/plugins/openbmc.pm
+++ b/xCAT-server/lib/xcat/plugins/openbmc.pm
@@ -676,6 +676,21 @@ my %api_config_info = (
             manual      => "xyz.openbmc_project.Time.Synchronization.Method.Manual",
         },
     },
+    RSPCONFIG_THERMAL_MODE => {
+        command      => "rspconfig",
+        url          => "/control/thermal/0",
+        attr_url     => "Current",
+        display_name => "BMC ThermalMode",
+        instruct_msg => "",
+        type         => "attribute",
+        subcommand   => "thermalmode",
+        attr_value   => {
+            default            => "DEFAULT",
+            custom             => "CUSTOM",
+            heavy_io           => "HEAVY_IO",
+            max_base_fan_floor => "MAX_BASE_FAN_FLOOR",
+        },
+    },
 );
 
 $::RESPONSE_OK                  = "200 OK";