diff --git a/ruoyi-common/ruoyi-common-dubbo/src/main/java/cn/dev33/satoken/context/dubbo/filter/SaTokenDubboProviderFilter.java b/ruoyi-common/ruoyi-common-dubbo/src/main/java/cn/dev33/satoken/context/dubbo/filter/SaTokenDubboProviderFilter.java
index 1079077d..6436b991 100644
--- a/ruoyi-common/ruoyi-common-dubbo/src/main/java/cn/dev33/satoken/context/dubbo/filter/SaTokenDubboProviderFilter.java
+++ b/ruoyi-common/ruoyi-common-dubbo/src/main/java/cn/dev33/satoken/context/dubbo/filter/SaTokenDubboProviderFilter.java
@@ -28,6 +28,10 @@ public class SaTokenDubboProviderFilter implements Filter {
         // RPC 调用鉴权
 		if(SaManager.getConfig().getCheckSameToken()) {
 			String idToken = invocation.getAttachment(SaSameUtil.SAME_TOKEN);
+            // dubbo部分协议会将参数变为小写，详细参考：https://gitee.com/dromara/sa-token/issues/I4WXQG
+            if(idToken == null) {
+                idToken = invocation.getAttachment(SaSameUtil.SAME_TOKEN.toLowerCase());
+            }
             SaSameUtil.checkToken(idToken);
 		}