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 050c5866f..904dfa633 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
@@ -34,9 +34,7 @@ public final class ContextGenerator {
             spanData = new Span(TraceIdGenerator.generate(), Config.SkyWalking.APPLICATION_ID);
         } else {
             // 如果不为空，则将当前的Context存放到上下文
-            spanData = new Span(context.getTraceId(), Config.SkyWalking.APPLICATION_ID);
-            spanData.setParentLevel(context.getParentLevel());
-            spanData.setLevelId(context.getLevelId());
+            spanData = new Span(context.getTraceId(), context.getParentLevel(), context.getLevelId(), Config.SkyWalking.APPLICATION_ID);
         }
         initNewSpanData(spanData, id);
 
diff --git a/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/Span.java b/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/Span.java
index d9ddc47e8..4fd44a14f 100644
--- a/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/Span.java
+++ b/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/Span.java
@@ -18,6 +18,13 @@ public class Span extends SpanData {
         this.applicationId = applicationID;
     }
 
+    public Span(String traceId, String parentLevelId, int levelId, String applicationID) {
+        this.traceId = traceId;
+        this.applicationId = applicationID;
+        this.parentLevel = parentLevelId;
+        this.levelId = levelId;
+    }
+
     public Span(String originData) {
         String[] fieldValues = originData.split(SPILT_REGEX);
         traceId = fieldValues[0].trim();
diff --git a/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/SpanData.java b/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/SpanData.java
index 9244c1c79..b7721c147 100644
--- a/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/SpanData.java
+++ b/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/SpanData.java
@@ -10,19 +10,19 @@ public abstract class SpanData {
 
     protected String traceId;
     protected String parentLevel;
-    protected int levelId;
-    protected String viewPointId;
-    protected long startDate;
-    protected long cost;
-    protected String address;
+    protected int levelId = 0;
+    protected String viewPointId = "";
+    protected long startDate = System.currentTimeMillis();
+    protected long cost = 0L;
+    protected String address = "";
     protected byte statusCode = 0;
     protected String exceptionStack;
-    protected char spanType;
+    protected char spanType = 'M';
     protected boolean isReceiver = false;
-    protected String businessKey;
-    protected String processNo;
-    protected String applicationId;
-    protected String originData;
+    protected String businessKey = "";
+    protected String processNo = "";
+    protected String applicationId = "";
+    protected String originData = "";
 
 
     public String getTraceId() {