diff --git a/tracer-core/src/main/java/com/alipay/common/tracer/core/appender/file/LoadTestAwareAppender.java b/tracer-core/src/main/java/com/alipay/common/tracer/core/appender/file/LoadTestAwareAppender.java
index 146e3e75..2d7fc2ac 100644
--- a/tracer-core/src/main/java/com/alipay/common/tracer/core/appender/file/LoadTestAwareAppender.java
+++ b/tracer-core/src/main/java/com/alipay/common/tracer/core/appender/file/LoadTestAwareAppender.java
@@ -30,34 +30,32 @@
 public final class LoadTestAwareAppender implements TraceAppender {
 
     /** TraceAppender for non-pressure */
-    private TraceAppender nonLoadTestTraceAppender;
+    private TimedRollingFileAppender nonLoadTestTraceAppender;
     /** TraceAppender for pressure*/
-    private TraceAppender loadTestTraceAppender;
+    private TimedRollingFileAppender loadTestTraceAppender;
 
-    private LoadTestAwareAppender(TraceAppender nonLoadTestTraceAppender,
-                                  TraceAppender loadTestTraceAppender) {
+    private LoadTestAwareAppender(TimedRollingFileAppender nonLoadTestTraceAppender,
+                                  TimedRollingFileAppender loadTestTraceAppender) {
         this.nonLoadTestTraceAppender = nonLoadTestTraceAppender;
         this.loadTestTraceAppender = loadTestTraceAppender;
     }
 
     public static LoadTestAwareAppender createLoadTestAwareTimedRollingFileAppender(String logName,
                                                                                     boolean append) {
-        TraceAppender nonLoadTestTraceAppender = new TimedRollingFileAppender(logName, append);
-        TraceAppender loadTestTraceAppender = new TimedRollingFileAppender("shadow"
-                                                                           + File.separator
-                                                                           + logName, append);
+        TimedRollingFileAppender nonLoadTestTraceAppender = new TimedRollingFileAppender(logName,
+                append);
+        TimedRollingFileAppender loadTestTraceAppender = new TimedRollingFileAppender(
+                "shadow" + File.separator + logName, append);
         return new LoadTestAwareAppender(nonLoadTestTraceAppender, loadTestTraceAppender);
     }
 
     public static LoadTestAwareAppender createLoadTestAwareTimedRollingFileAppender(String logName,
                                                                                     String rollingPolicy,
                                                                                     String logReserveConfig) {
-        TraceAppender nonLoadTestTraceAppender = new TimedRollingFileAppender(logName,
-            rollingPolicy, logReserveConfig);
-        TraceAppender loadTestTraceAppender = new TimedRollingFileAppender("shadow"
-                                                                           + File.separator
-                                                                           + logName,
-            rollingPolicy, logReserveConfig);
+        TimedRollingFileAppender nonLoadTestTraceAppender = new TimedRollingFileAppender(logName,
+                rollingPolicy, logReserveConfig);
+        TimedRollingFileAppender loadTestTraceAppender = new TimedRollingFileAppender(
+                "shadow" + File.separator + logName, rollingPolicy, logReserveConfig);
         return new LoadTestAwareAppender(nonLoadTestTraceAppender, loadTestTraceAppender);
     }
 
@@ -85,4 +83,9 @@ public void cleanup() {
         nonLoadTestTraceAppender.cleanup();
         loadTestTraceAppender.cleanup();
     }
-}
+
+    public void reset(String datePattern) {
+        nonLoadTestTraceAppender.resetTimedRollingFilleConfig(datePattern);
+        loadTestTraceAppender.resetTimedRollingFilleConfig(datePattern);
+    }
+}
\ No newline at end of file
diff --git a/tracer-core/src/main/java/com/alipay/common/tracer/core/appender/file/TimedRollingFileAppender.java b/tracer-core/src/main/java/com/alipay/common/tracer/core/appender/file/TimedRollingFileAppender.java
index a13941e8..553a5f46 100644
--- a/tracer-core/src/main/java/com/alipay/common/tracer/core/appender/file/TimedRollingFileAppender.java
+++ b/tracer-core/src/main/java/com/alipay/common/tracer/core/appender/file/TimedRollingFileAppender.java
@@ -131,6 +131,17 @@ public TimedRollingFileAppender(String file, int bufferSize, boolean append,
         TracerDaemon.watch(this);
     }
 
+    public void resetTimedRollingFilleConfig(String datePattern) {
+        this.datePattern = datePattern;
+        sdf = new SimpleDateFormat(this.datePattern);
+        rc.setType(computeCheckPeriod());
+        scheduledFilename = fileName + sdf.format(new Date(logFile.lastModified()));
+        TracerDaemon.watch(this);
+        //重置 nextCheck
+        now.setTime(System.currentTimeMillis());
+        this.nextCheck = rc.getNextCheckMillis(now);
+    }
+
     /**
      * Determine if RollOver should be done now
      * @return true:Now RollOver