diff --git a/src/main/java/com/dispose/pojo/dto/protocol/base/ProtocolReqDTO.java b/src/main/java/com/dispose/pojo/dto/protocol/base/ProtocolReqDTO.java
index 76c26ee7..c9b02186 100644
--- a/src/main/java/com/dispose/pojo/dto/protocol/base/ProtocolReqDTO.java
+++ b/src/main/java/com/dispose/pojo/dto/protocol/base/ProtocolReqDTO.java
@@ -34,7 +34,7 @@ public class ProtocolReqDTO<T> extends BaseProtocolDTO<T> {
         try {
             String authString = Objects.requireNonNull(headers.get("Authorization")).get(0);
 
-            if (authString.length() == 0 || !authString.startsWith(ConstValue.STRING_HTTP_AUTH_HEAD)) {
+            if (!authString.startsWith(ConstValue.STRING_HTTP_AUTH_HEAD)) {
                 log.error("Input Authorization header error: [{}]", authString);
                 return "";
             }