diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7237417c..99b1f5d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,3 +14,4 @@
 - [Feature: add feature env examples](https://github.com/Tencent/spring-cloud-tencent/pull/450)
 - [Feature: Add disposable metadata transfer support](https://github.com/Tencent/spring-cloud-tencent/pull/430)
 - [Bugfix: Removed unused class for circuit-breaker module](https://github.com/Tencent/spring-cloud-tencent/pull/455)
+- [Optimize: rename opertion EQUAL to EQUALS](https://github.com/Tencent/spring-cloud-tencent/pull/457)
diff --git a/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/rule/Operation.java b/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/rule/Operation.java
index 1d32638f..f48659c5 100644
--- a/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/rule/Operation.java
+++ b/spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/rule/Operation.java
@@ -34,11 +34,11 @@ public enum Operation {
 	/**
 	 * case sensitive string equals.
 	 */
-	EQUAL("EQUAL"),
+	EQUALS("EQUALS"),
 	/**
 	 * case sensitive string not equals.
 	 */
-	NOT_EQUAL("NOT_EQUAL"),
+	NOT_EQUALS("NOT_EQUALS"),
 	/**
 	 * whether element in collection.
 	 */
@@ -73,9 +73,9 @@ public enum Operation {
 		}
 
 		switch (getOperation(rawOperation)) {
-		case EQUAL:
+		case EQUALS:
 			return firstExpectedValue != null && StringUtils.equals(actualValue, firstExpectedValue);
-		case NOT_EQUAL:
+		case NOT_EQUALS:
 			return firstExpectedValue == null || !StringUtils.equals(actualValue, firstExpectedValue);
 		case BLANK:
 			return StringUtils.isBlank(actualValue);
@@ -103,11 +103,11 @@ public enum Operation {
 	}
 
 	public static Operation getOperation(String operation) {
-		if (StringUtils.equalsIgnoreCase(operation, EQUAL.value)) {
-			return EQUAL;
+		if (StringUtils.equalsIgnoreCase(operation, EQUALS.value)) {
+			return EQUALS;
 		}
-		if (StringUtils.equalsIgnoreCase(operation, NOT_EQUAL.value)) {
-			return NOT_EQUAL;
+		if (StringUtils.equalsIgnoreCase(operation, NOT_EQUALS.value)) {
+			return NOT_EQUALS;
 		}
 		if (StringUtils.equalsIgnoreCase(operation, IN.value)) {
 			return IN;
diff --git a/spring-cloud-tencent-commons/src/test/java/com/tencent/cloud/common/rule/OperationTest.java b/spring-cloud-tencent-commons/src/test/java/com/tencent/cloud/common/rule/OperationTest.java
index c5ab0cd6..33fe393c 100644
--- a/spring-cloud-tencent-commons/src/test/java/com/tencent/cloud/common/rule/OperationTest.java
+++ b/spring-cloud-tencent-commons/src/test/java/com/tencent/cloud/common/rule/OperationTest.java
@@ -35,22 +35,22 @@ public class OperationTest {
 
 	@Test
 	public void testEqual() {
-		Assert.assertTrue(Operation.match(Collections.singletonList("v1"), "v1", Operation.EQUAL.getValue()));
-		Assert.assertFalse(Operation.match(Collections.singletonList("v1"), "v2", Operation.EQUAL.getValue()));
-		Assert.assertFalse(Operation.match(Collections.singletonList(""), "v2", Operation.EQUAL.getValue()));
-		Assert.assertFalse(Operation.match(Collections.singletonList("v1"), "", Operation.EQUAL.getValue()));
-		Assert.assertFalse(Operation.match(Collections.singletonList("v1"), null, Operation.EQUAL.getValue()));
-		Assert.assertFalse(Operation.match(Collections.emptyList(), "v1", Operation.EQUAL.getValue()));
+		Assert.assertTrue(Operation.match(Collections.singletonList("v1"), "v1", Operation.EQUALS.getValue()));
+		Assert.assertFalse(Operation.match(Collections.singletonList("v1"), "v2", Operation.EQUALS.getValue()));
+		Assert.assertFalse(Operation.match(Collections.singletonList(""), "v2", Operation.EQUALS.getValue()));
+		Assert.assertFalse(Operation.match(Collections.singletonList("v1"), "", Operation.EQUALS.getValue()));
+		Assert.assertFalse(Operation.match(Collections.singletonList("v1"), null, Operation.EQUALS.getValue()));
+		Assert.assertFalse(Operation.match(Collections.emptyList(), "v1", Operation.EQUALS.getValue()));
 	}
 
 	@Test
 	public void testNotEqual() {
-		Assert.assertFalse(Operation.match(Collections.singletonList("v1"), "v1", Operation.NOT_EQUAL.getValue()));
-		Assert.assertTrue(Operation.match(Collections.singletonList("v1"), "v2", Operation.NOT_EQUAL.getValue()));
-		Assert.assertTrue(Operation.match(Collections.singletonList(""), "v2", Operation.NOT_EQUAL.getValue()));
-		Assert.assertTrue(Operation.match(Collections.singletonList("v1"), "", Operation.NOT_EQUAL.getValue()));
-		Assert.assertTrue(Operation.match(Collections.singletonList("v1"), null, Operation.NOT_EQUAL.getValue()));
-		Assert.assertTrue(Operation.match(Collections.emptyList(), "v1", Operation.NOT_EQUAL.getValue()));
+		Assert.assertFalse(Operation.match(Collections.singletonList("v1"), "v1", Operation.NOT_EQUALS.getValue()));
+		Assert.assertTrue(Operation.match(Collections.singletonList("v1"), "v2", Operation.NOT_EQUALS.getValue()));
+		Assert.assertTrue(Operation.match(Collections.singletonList(""), "v2", Operation.NOT_EQUALS.getValue()));
+		Assert.assertTrue(Operation.match(Collections.singletonList("v1"), "", Operation.NOT_EQUALS.getValue()));
+		Assert.assertTrue(Operation.match(Collections.singletonList("v1"), null, Operation.NOT_EQUALS.getValue()));
+		Assert.assertTrue(Operation.match(Collections.emptyList(), "v1", Operation.NOT_EQUALS.getValue()));
 	}
 
 	@Test
diff --git a/spring-cloud-tencent-plugin-starters/spring-cloud-tencent-gateway-plugin/src/test/java/com/tencent/cloud/plugin/gateway/staining/rule/RuleStainingExecutorTest.java b/spring-cloud-tencent-plugin-starters/spring-cloud-tencent-gateway-plugin/src/test/java/com/tencent/cloud/plugin/gateway/staining/rule/RuleStainingExecutorTest.java
index 5bb4757d..91c0c42d 100644
--- a/spring-cloud-tencent-plugin-starters/spring-cloud-tencent-gateway-plugin/src/test/java/com/tencent/cloud/plugin/gateway/staining/rule/RuleStainingExecutorTest.java
+++ b/spring-cloud-tencent-plugin-starters/spring-cloud-tencent-gateway-plugin/src/test/java/com/tencent/cloud/plugin/gateway/staining/rule/RuleStainingExecutorTest.java
@@ -44,7 +44,7 @@ public class RuleStainingExecutorTest {
 	public void testMatchCondition() {
 		Condition condition1 = new Condition();
 		condition1.setKey("${http.header.uid}");
-		condition1.setOperation(Operation.EQUAL.toString());
+		condition1.setOperation(Operation.EQUALS.toString());
 		condition1.setValues(Collections.singletonList("1000"));
 
 		Condition condition2 = new Condition();
@@ -81,7 +81,7 @@ public class RuleStainingExecutorTest {
 	public void testNotMatchCondition() {
 		Condition condition1 = new Condition();
 		condition1.setKey("${http.header.uid}");
-		condition1.setOperation(Operation.EQUAL.toString());
+		condition1.setOperation(Operation.EQUALS.toString());
 		condition1.setValues(Collections.singletonList("1000"));
 
 		Condition condition2 = new Condition();
@@ -117,7 +117,7 @@ public class RuleStainingExecutorTest {
 	public void testMatchTwoRulesAndNotMatchOneRule() {
 		Condition condition1 = new Condition();
 		condition1.setKey("${http.header.uid}");
-		condition1.setOperation(Operation.EQUAL.toString());
+		condition1.setOperation(Operation.EQUALS.toString());
 		condition1.setValues(Collections.singletonList("1000"));
 
 		Condition condition2 = new Condition();