diff --git a/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/ThreadBuriedPointSender.java b/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/ThreadBuriedPointSender.java
index 29bfa9934..11562187a 100644
--- a/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/ThreadBuriedPointSender.java
+++ b/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/ThreadBuriedPointSender.java
@@ -28,11 +28,11 @@ public class ThreadBuriedPointSender implements IBuriedPointSender {
         // 从ThreadLocal中取出上下文
         final Span parentSpanData = Context.getLastSpan();
         if (parentSpanData == null) {
-            spanData = new Span(TraceIdGenerator.generate(), Config.SkyWalking.APPLICATION_ID,
+            spanData = new Span(TraceIdGenerator.generate(), Config.SkyWalking.APPLICATION_CODE,
                     Config.SkyWalking.USER_ID);
         } else {
             // 如果不为空，则将当前的Context存放到上下文
-            spanData = new Span(parentSpanData.getTraceId(), Config.SkyWalking.APPLICATION_ID,
+            spanData = new Span(parentSpanData.getTraceId(), Config.SkyWalking.APPLICATION_CODE,
                     Config.SkyWalking.USER_ID);
             spanData.setParentLevel(parentSpanData.getParentLevel() + "." + parentSpanData.getLevelId());
             spanData.setLevelId(threadSeqId);
diff --git a/skywalking-api/src/main/java/com/ai/cloud/skywalking/conf/Config.java b/skywalking-api/src/main/java/com/ai/cloud/skywalking/conf/Config.java
index 5bae26cad..c8d8b6efc 100644
--- a/skywalking-api/src/main/java/com/ai/cloud/skywalking/conf/Config.java
+++ b/skywalking-api/src/main/java/com/ai/cloud/skywalking/conf/Config.java
@@ -5,7 +5,7 @@ public class Config {
 	public static class SkyWalking {
 		public static String USER_ID;
 
-		public static String APPLICATION_ID;
+		public static String APPLICATION_CODE;
 	}
 
 	public static class BuriedPoint {
diff --git a/skywalking-api/src/main/java/com/ai/cloud/skywalking/util/ContextGenerator.java b/skywalking-api/src/main/java/com/ai/cloud/skywalking/util/ContextGenerator.java
index b945728f8..0958d9d26 100644
--- a/skywalking-api/src/main/java/com/ai/cloud/skywalking/util/ContextGenerator.java
+++ b/skywalking-api/src/main/java/com/ai/cloud/skywalking/util/ContextGenerator.java
@@ -31,10 +31,10 @@ public final class ContextGenerator {
         // 校验传入的参数是否为空，如果为空，则新创建一个
         if (context == null || StringUtil.isEmpty(context.getTraceId())) {
             // 不存在，新创建一个Context
-            spanData = new Span(TraceIdGenerator.generate(), Config.SkyWalking.APPLICATION_ID, Config.SkyWalking.USER_ID);
+            spanData = new Span(TraceIdGenerator.generate(), Config.SkyWalking.APPLICATION_CODE, Config.SkyWalking.USER_ID);
         } else {
             // 如果不为空，则将当前的Context存放到上下文
-            spanData = new Span(context.getTraceId(), context.getParentLevel(), context.getLevelId(), Config.SkyWalking.APPLICATION_ID, Config.SkyWalking.USER_ID);
+            spanData = new Span(context.getTraceId(), context.getParentLevel(), context.getLevelId(), Config.SkyWalking.APPLICATION_CODE, Config.SkyWalking.USER_ID);
         }
         initNewSpanData(spanData, id);
 
@@ -58,12 +58,12 @@ public final class ContextGenerator {
         // 2 校验Context，Context是否存在
         if (parentSpan == null) {
             // 不存在，新创建一个Context
-            span = new Span(TraceIdGenerator.generate(), Config.SkyWalking.APPLICATION_ID, Config.SkyWalking.USER_ID);
+            span = new Span(TraceIdGenerator.generate(), Config.SkyWalking.APPLICATION_CODE, Config.SkyWalking.USER_ID);
         } else {
             // 根据ParentContextData的TraceId和RPCID
             // LevelId是由SpanNode类的nextSubSpanLevelId字段进行初始化的.
             // 所以在这里不需要初始化
-            span = new Span(parentSpan.getTraceId(), Config.SkyWalking.APPLICATION_ID, Config.SkyWalking.USER_ID);
+            span = new Span(parentSpan.getTraceId(), Config.SkyWalking.APPLICATION_CODE, Config.SkyWalking.USER_ID);
             if (!StringUtil.isEmpty(parentSpan.getParentLevel())) {
                 span.setParentLevel(parentSpan.getParentLevel() + "." + parentSpan.getLevelId());
             } else {
diff --git a/skywalking-api/src/main/java/com/ai/cloud/skywalking/util/TraceIdGenerator.java b/skywalking-api/src/main/java/com/ai/cloud/skywalking/util/TraceIdGenerator.java
index 1fc259806..81b8011da 100644
--- a/skywalking-api/src/main/java/com/ai/cloud/skywalking/util/TraceIdGenerator.java
+++ b/skywalking-api/src/main/java/com/ai/cloud/skywalking/util/TraceIdGenerator.java
@@ -24,9 +24,9 @@ public final class TraceIdGenerator {
     	ThreadTraceIdSequence.set(seq);
     	
     	return System.currentTimeMillis()
-                + "." + PROCESS_UUID
-                + "." + BuriedPointMachineUtil.getProcessNo()
-                + "." + Thread.currentThread().getId() 
-                + "." + seq;
+                + PROCESS_UUID
+                + BuriedPointMachineUtil.getProcessNo()
+                + Thread.currentThread().getId() 
+                + seq;
     }
 }