diff --git a/src/main/java/com/njcn/middle/cache/template/RedisCacheEnhanceTemplate.java b/src/main/java/com/njcn/middle/cache/template/RedisCacheEnhanceTemplate.java
index 2e6347d..b6f42fa 100644
--- a/src/main/java/com/njcn/middle/cache/template/RedisCacheEnhanceTemplate.java
+++ b/src/main/java/com/njcn/middle/cache/template/RedisCacheEnhanceTemplate.java
@@ -90,7 +90,9 @@ public class RedisCacheEnhanceTemplate {
     }
 
     public boolean exists(String key) {
-        return Boolean.TRUE.equals(redis.hasKey(keyBuilder.build(key)));
+        // 与 get 口径一致:空值标记不算"存在"(物理 hasKey 会把空标记算存在,与 get→null 打架)
+        String raw = redis.opsForValue().get(keyBuilder.build(key));
+        return raw != null && !codec.isNullSentinel(raw);
     }
 
     // ---- 续期 ----
diff --git a/src/test/java/com/njcn/middle/cache/template/RedisCacheEnhanceTemplateTest.java b/src/test/java/com/njcn/middle/cache/template/RedisCacheEnhanceTemplateTest.java
index 311f59d..6f4ab8c 100644
--- a/src/test/java/com/njcn/middle/cache/template/RedisCacheEnhanceTemplateTest.java
+++ b/src/test/java/com/njcn/middle/cache/template/RedisCacheEnhanceTemplateTest.java
@@ -23,6 +23,7 @@ import java.util.function.Consumer;
 import java.util.function.Supplier;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTimeoutPreemptively;
@@ -318,4 +319,24 @@ class RedisCacheEnhanceTemplateTest {
     void constructorAcceptsDefaults() {
         new RedisCacheEnhanceTemplate(redis, keyBuilder, codec, new RedisCacheProperties());
     }
+
+    // ---- #7: exists 排除空值标记(与 get 口径一致) ----
+
+    @Test
+    void existsTrueForRealValue() {
+        when(valueOps.get("cache:user:1")).thenReturn(JSON.toJSONString(new User(1L, "a")));
+        assertTrue(template.exists("user:1"));
+    }
+
+    @Test
+    void existsFalseForNullSentinel() {
+        when(valueOps.get("cache:user:1")).thenReturn(CacheConstant.NULL_SENTINEL);
+        assertFalse(template.exists("user:1"));
+    }
+
+    @Test
+    void existsFalseForMissing() {
+        when(valueOps.get("cache:user:1")).thenReturn(null);
+        assertFalse(template.exists("user:1"));
+    }
 }