diff --git a/common/src/main/java/tech/deepq/common/utils/signature/MD5SignatureService.java b/common/src/main/java/tech/deepq/common/utils/signature/MD5SignatureService.java
new file mode 100644
index 0000000..58ee26f
--- /dev/null
+++ b/common/src/main/java/tech/deepq/common/utils/signature/MD5SignatureService.java
@@ -0,0 +1,37 @@
+package tech.deepq.common.utils.signature;
+
+import org.springframework.util.DigestUtils;
+import tech.deepq.common.dto.SignatureConfig;
+
+import java.nio.charset.StandardCharsets;
+import java.security.GeneralSecurityException;
+
+/**
+ * @author yechuan
+ * @since 2023/9/1 09:46
+ **/
+public class MD5SignatureService extends AbstractSignatureService {
+
+    private final static MD5SignatureService instance = new MD5SignatureService();
+
+    private MD5SignatureService() {
+
+    }
+
+    public static AbstractSignatureService getInstance(SignatureConfig signatureConfig) throws GeneralSecurityException {
+        return instance;
+    }
+
+    /**
+     * 对content进行加密
+     */
+    @Override
+    public String signatureContent(String content) {
+        return DigestUtils.md5DigestAsHex((content).getBytes(StandardCharsets.UTF_8));
+    }
+
+    @Override
+    void init(SignatureConfig signatureConfig) {
+        return;
+    }
+}