diff --git a/script/impl/postuninstall/PostUninstallImpl.py b/script/impl/postuninstall/PostUninstallImpl.py
index 696cae908b084eab7634a548e3a98ae68f490407..2f4f88bb13862abaf679cc9459e26da4f0abf600 100644
--- a/script/impl/postuninstall/PostUninstallImpl.py
+++ b/script/impl/postuninstall/PostUninstallImpl.py
@@ -483,6 +483,8 @@ class PostUninstallImpl:
             if os.path.exists(user_bashrc):
                 FileUtil.deleteLine(user_bashrc,
                                     "^\\s*export\\s*%s=.*$" % DefaultValue.MPPRC_FILE_ENV)
+                FileUtil.deleteLine(user_bashrc,
+                                    "^\\s*source\\s*=\\s*%s" % DefaultValue.MPPRC_FILE_ENV)
 
             # clean $GAUSS_ENV
             if (not self.deleteUser):
diff --git a/script/local/PreInstallUtility.py b/script/local/PreInstallUtility.py
index 770870831da53be46a65b4fd06a07cbdfc7466c0..467e9b3b930d31667607bdc7be57d4fb6a57cd22 100644
--- a/script/local/PreInstallUtility.py
+++ b/script/local/PreInstallUtility.py
@@ -1335,6 +1335,7 @@ Common options:
             FileUtil.deleteLine(self.user_env_file,
                                 "^\\s*export\\s*%s=.*$" % DefaultValue.MPPRC_FILE_ENV)
             context = "export %s=%s" % (DefaultValue.MPPRC_FILE_ENV, self.mpprcFile)
+            context += "\nsource %s" % self.mpprcFile
             FileUtil.writeFile(self.user_env_file, [context])
             self.logger.debug("Successfully flush 'export MPPRC' in bashrc")