diff --git a/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/service/parameter/AbstractNamedValueServiceParameterResolver.java b/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/service/parameter/AbstractNamedValueServiceParameterResolver.java
index 2fa4511f8..206d3e4a7 100644
--- a/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/service/parameter/AbstractNamedValueServiceParameterResolver.java
+++ b/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/service/parameter/AbstractNamedValueServiceParameterResolver.java
@@ -112,7 +112,7 @@ public abstract class AbstractNamedValueServiceParameterResolver
 			}
 		}
 
-		return index > -1 ? arguments[index] : null;
+		return index != null && index > -1 ? arguments[index] : null;
 	}
 
 	protected Collection<String> getNames(RestMethodMetadata restMethodMetadata,