diff --git a/yudao-framework/yudao-spring-boot-starter-protection/src/main/java/cn/iocoder/yudao/framework/signature/core/aop/ApiSignatureAspect.java b/yudao-framework/yudao-spring-boot-starter-protection/src/main/java/cn/iocoder/yudao/framework/signature/core/aop/ApiSignatureAspect.java
index 3259dac11..0af3adba2 100644
--- a/yudao-framework/yudao-spring-boot-starter-protection/src/main/java/cn/iocoder/yudao/framework/signature/core/aop/ApiSignatureAspect.java
+++ b/yudao-framework/yudao-spring-boot-starter-protection/src/main/java/cn/iocoder/yudao/framework/signature/core/aop/ApiSignatureAspect.java
@@ -69,7 +69,7 @@ public class ApiSignatureAspect {
 
         // 3. 将 nonce 记入缓存，防止重复使用（重点二：此处需要将 ttl 设定为允许 timestamp 时间差的值 x 2 ）
         String nonce = request.getHeader(signature.nonce());
-        signatureRedisDAO.setNonce(nonce, signature.timeout() * 2, signature.timeUnit());
+        signatureRedisDAO.setNonce(appId, nonce, signature.timeout() * 2, signature.timeUnit());
         return true;
     }
 
@@ -113,7 +113,7 @@ public class ApiSignatureAspect {
         }
 
         // 3. 检查 nonce 是否存在，有且仅能使用一次
-        return signatureRedisDAO.getNonce(nonce) == null;
+        return signatureRedisDAO.getNonce(appId, nonce) == null;
     }
 
     /**
diff --git a/yudao-framework/yudao-spring-boot-starter-protection/src/main/java/cn/iocoder/yudao/framework/signature/core/redis/ApiSignatureRedisDAO.java b/yudao-framework/yudao-spring-boot-starter-protection/src/main/java/cn/iocoder/yudao/framework/signature/core/redis/ApiSignatureRedisDAO.java
index f4aa84910..11fe384da 100644
--- a/yudao-framework/yudao-spring-boot-starter-protection/src/main/java/cn/iocoder/yudao/framework/signature/core/redis/ApiSignatureRedisDAO.java
+++ b/yudao-framework/yudao-spring-boot-starter-protection/src/main/java/cn/iocoder/yudao/framework/signature/core/redis/ApiSignatureRedisDAO.java
@@ -22,7 +22,7 @@ public class ApiSignatureRedisDAO {
      * VALUE 格式：String
      * 过期时间：不固定
      */
-    private static final String SIGNATURE_NONCE = "api_signature_nonce:%s";
+    private static final String SIGNATURE_NONCE = "api_signature_nonce:%s:%s";
 
     /**
      * 签名密钥
@@ -36,16 +36,16 @@ public class ApiSignatureRedisDAO {
 
     // ========== 验签随机数 ==========
 
-    public String getNonce(String nonce) {
-        return stringRedisTemplate.opsForValue().get(formatNonceKey(nonce));
+    public String getNonce(String appId, String nonce) {
+        return stringRedisTemplate.opsForValue().get(formatNonceKey(appId, nonce));
     }
 
-    public void setNonce(String nonce, int time, TimeUnit timeUnit) {
-        stringRedisTemplate.opsForValue().set(formatNonceKey(nonce), "", time, timeUnit);
+    public void setNonce(String appId, String nonce, int time, TimeUnit timeUnit) {
+        stringRedisTemplate.opsForValue().set(formatNonceKey(appId, nonce), "", time, timeUnit);
     }
 
-    private static String formatNonceKey(String key) {
-        return String.format(SIGNATURE_NONCE, key);
+    private static String formatNonceKey(String appId, String nonce) {
+        return String.format(SIGNATURE_NONCE, appId, nonce);
     }
 
     // ========== 签名密钥 ==========
diff --git a/yudao-framework/yudao-spring-boot-starter-protection/src/test/java/cn/iocoder/yudao/framework/signature/core/ApiSignatureTest.java b/yudao-framework/yudao-spring-boot-starter-protection/src/test/java/cn/iocoder/yudao/framework/signature/core/ApiSignatureTest.java
index c9a3dfff4..481fb5d01 100644
--- a/yudao-framework/yudao-spring-boot-starter-protection/src/test/java/cn/iocoder/yudao/framework/signature/core/ApiSignatureTest.java
+++ b/yudao-framework/yudao-spring-boot-starter-protection/src/test/java/cn/iocoder/yudao/framework/signature/core/ApiSignatureTest.java
@@ -69,7 +69,7 @@ public class ApiSignatureTest {
         // 断言结果
         assertTrue(result);
         // 断言调用
-        verify(signatureRedisDAO).setNonce(eq(nonce), eq(120), eq(TimeUnit.SECONDS));
+        verify(signatureRedisDAO).setNonce(eq(appId),eq(nonce), eq(120), eq(TimeUnit.SECONDS));
     }
 
 }