diff --git a/agent-module/plugins-it/log4j-it/src/test/java/com/navercorp/pinpoint/it/plugin/log4j/Log4jFullReplaceIT.java b/agent-module/plugins-it/log4j-it/src/test/java/com/navercorp/pinpoint/it/plugin/log4j/Log4jFullReplaceIT.java
new file mode 100644
index 000000000000..6d49444ca628
--- /dev/null
+++ b/agent-module/plugins-it/log4j-it/src/test/java/com/navercorp/pinpoint/it/plugin/log4j/Log4jFullReplaceIT.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2024 NAVER Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.navercorp.pinpoint.it.plugin.log4j;
+
+import com.navercorp.pinpoint.it.plugin.utils.AgentPath;
+import com.navercorp.pinpoint.it.plugin.utils.PluginITConstants;
+import com.navercorp.pinpoint.test.plugin.*;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+@PluginForkedTest
+@PinpointAgent(AgentPath.PATH)
+@Dependency({"log4j:log4j:[1.2.16,)", PluginITConstants.VERSION})
+@ImportPlugin({"com.navercorp.pinpoint:pinpoint-log4j-plugin"})
+@PinpointConfig("pinpoint-spring-bean-test.config")
+@TransformInclude("org.apache.log4j.")
+@JvmArgument("-Dprofiler.log4j.logging.pattern.full_replace.with=IT TxId:%X{PtxId} %m")
+public class Log4jFullReplaceIT extends Log4jTestBase {
+
+    @Test
+    public void test() {
+        checkMDC();
+    }
+
+    @Test
+    public void patternUpdate() {
+        String log = checkPatternReplace();
+        Assertions.assertTrue(log.contains("IT"), "contains full-replace string IT");
+    }
+
+}
diff --git a/agent-module/plugins-it/log4j-it/src/test/java/com/navercorp/pinpoint/it/plugin/log4j/Log4jTestBase.java b/agent-module/plugins-it/log4j-it/src/test/java/com/navercorp/pinpoint/it/plugin/log4j/Log4jTestBase.java
index 5337abeeee9d..ece857b3a0e0 100644
--- a/agent-module/plugins-it/log4j-it/src/test/java/com/navercorp/pinpoint/it/plugin/log4j/Log4jTestBase.java
+++ b/agent-module/plugins-it/log4j-it/src/test/java/com/navercorp/pinpoint/it/plugin/log4j/Log4jTestBase.java
@@ -34,7 +34,7 @@ protected void checkMDC() {
         Assertions.assertNotNull(MDC.get("PspanId"), "spanId");
     }
 
-    protected void checkPatternReplace() {
+    protected String checkPatternReplace() {
         final String msg = "pattern";
 
 
@@ -54,6 +54,7 @@ public void run() {
 
         Assertions.assertNotNull(logger, "logger null");
         checkVersion(logger);
+        return log;
     }
 
     private void checkVersion(Logger logger) {