diff --git a/security-tool.sh b/security-tool.sh
index c6bc4e7003aa0149c5db584202432f0a88c75a83..75676e0c055213be22236d49b1d63a15e8e2fbfb 100644
--- a/security-tool.sh
+++ b/security-tool.sh
@@ -662,6 +662,7 @@ function fn_handle_umask()
 
 #=============================================================================
 # Function Name: fn_handle_ln
+# Description  : delete the content in the specified file
 # Returns      : 0 on success, otherwise on fail
 #=============================================================================
 function fn_handle_ln()
@@ -675,6 +676,27 @@ function fn_handle_ln()
     return $?
 }
 
+#=============================================================================
+# Function Name: fn_handle_ufs
+# Returns      : 0 on success, otherwise on fail
+#=============================================================================
+function fn_handle_ufs(){
+    fn_test_params_num 3
+
+    file_name=$1
+    string=$2
+    if [ -n "$3" ];then
+        string=$2"@"$3
+    fi
+
+    if [ -f "$file_name" ] ; then
+    # 删除文件中的指定字符串
+        sed -i "s/$string//g" "$file_name"
+    fi
+
+    return $?
+}
+
 
 #=============================================================================
 # Function Name: fn_harden_rootfs
@@ -759,6 +781,10 @@ function fn_harden_rootfs()
             fn_handle_ln "$f3" "$f4" "$f5"
             status=$?
             ;;
+        ufs)
+            fn_handle_ln "$f3" "$f4" "$f5"
+            status=$?
+            ;;
         *)
             fn_handle_command "$f2" "$f3"
             status=$?
@@ -861,6 +887,10 @@ IFS=$PRE_IFS
             fn_handle_ln "$f3" "$f4" "$f5"
             status=$?
             ;;
+        ufs)
+            fn_handle_ln "$f3" "$f4" "$f5"
+            status=$?
+            ;;
         *)
             fn_handle_command "$f2" "$f3"
             status=$?
diff --git a/security-tool.spec b/security-tool.spec
index 71bb65be73cc0240b5ad1c97969dfc8ff4e36d8e..39b4048fa08101f6ba90eb0e23836f2b9b3fd904 100644
--- a/security-tool.spec
+++ b/security-tool.spec
@@ -1,7 +1,7 @@
 Summary: openEuler Security Tool
 Name   : security-tool
 Version: 2.0
-Release: 1.51
+Release: 1.52
 Source0: %{name}-%{version}.tar.bz2
 Source1: security
 Source2: security.conf
@@ -120,6 +120,9 @@ fi
 %attr(0500,root,root) %{_sbindir}/security-tool.sh
 
 %changelog
+* Mon May 15 2023 qinzhiben <qinzhiben@uniontech.com> - 2.0-1.52
+- add method of deleting the content in the specified file
+
 * Tue Dec 27 2022 zhengxiaoxiao <zhengxiaoxiao2@huawei.com> - 2.0-1.51
 - add requires findutils