diff --git a/src/model/functionMap.ts b/src/model/functionMap.ts
index 1616547..0c3ef89 100644
--- a/src/model/functionMap.ts
+++ b/src/model/functionMap.ts
@@ -37,6 +37,7 @@ export class FunctionMap {
     fm.addFunction('keyGet2', util.keyGet2Func);
     fm.addFunction('keyMatch3', util.keyMatch3Func);
     fm.addFunction('keyMatch4', util.keyMatch4Func);
+    fm.addFunction('keyMatch5', util.keyMatch5Func);
     fm.addFunction('regexMatch', util.regexMatchFunc);
     fm.addFunction('ipMatch', util.ipMatchFunc);
     fm.addFunction('globMatch', util.globMatch);
diff --git a/src/util/builtinOperators.ts b/src/util/builtinOperators.ts
index c1869c2..cd1df51 100644
--- a/src/util/builtinOperators.ts
+++ b/src/util/builtinOperators.ts
@@ -233,6 +233,26 @@ function keyMatch4Func(...args: any[]): boolean {
   return keyMatch4(name1, name2);
 }
 
+// KeyMatch determines whether key1 matches the pattern of key2 and ignores the parameters in key2.
+// For example, "/foo/bar?status=1&type=2" matches "/foo/bar"
+function KeyMatch5(key1: string, key2: string): boolean {
+  const i: number = key1.indexOf('?');
+  if (i === -1) {
+    return key1 === key2;
+  }
+
+  return key1.slice(0, i) === key2;
+}
+
+// keyMatch5Func is the wrapper for KeyMatch5.
+function keyMatch5Func(...args: any[]): boolean {
+  const [arg0, arg1] = args;
+  const name1: string = (arg0 || '').toString();
+  const name2: string = (arg1 || '').toString();
+
+  return KeyMatch5(name1, name2);
+}
+
 // regexMatchFunc is the wrapper for regexMatch.
 function regexMatchFunc(...args: any[]): boolean {
   const [arg0, arg1] = args;
@@ -326,5 +346,6 @@ export {
   ipMatchFunc,
   generateGFunction,
   keyMatch4Func,
+  keyMatch5Func,
   globMatch,
 };
diff --git a/test/util.test.ts b/test/util.test.ts
index 02f97d1..fe03076 100644
--- a/test/util.test.ts
+++ b/test/util.test.ts
@@ -92,6 +92,15 @@ test('test keyMatch4Func', () => {
   expect(util.keyMatch4Func('/parent/123/child/456', '/parent/{id}/child/{id}/book/{id}')).toEqual(false);
 });
 
+test('test keyMatch5Func', () => {
+  expect(util.keyMatch5Func('/parent/child?status=1&type=2', '/parent/child')).toEqual(true);
+  expect(util.keyMatch5Func('/parent?status=1&type=2', '/parent/child')).toEqual(false);
+
+  expect(util.keyMatch5Func('/parent/child/?status=1&type=2', '/parent/child/')).toEqual(true);
+  expect(util.keyMatch5Func('/parent/child/?status=1&type=2', '/parent/child')).toEqual(false);
+  expect(util.keyMatch5Func('/parent/child?status=1&type=2', '/parent/child/')).toEqual(false);
+});
+
 test('test ipMatchFunc', () => {
   expect(util.ipMatchFunc('::1', '::0:1')).toEqual(true);
   expect(util.ipMatchFunc('192.168.1.1', '192.168.1.1')).toEqual(true);