diff --git a/src/main/java/me/zhyd/oauth/enums/scope/AuthStackoverflowScope.java b/src/main/java/me/zhyd/oauth/enums/scope/AuthStackoverflowScope.java
new file mode 100644
index 0000000000000000000000000000000000000000..b9f54c23042b76dc19363f4b046aa4695e42e7f2
--- /dev/null
+++ b/src/main/java/me/zhyd/oauth/enums/scope/AuthStackoverflowScope.java
@@ -0,0 +1,48 @@
+package me.zhyd.oauth.enums.scope;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Stackoverflow 平台 OAuth 授权范围
+ *
+ * @author yadong.zhang (yadong.zhang0415(a)gmail.com)
+ * @version 1.0.0
+ * @since 1.0.0
+ */
+@Getter
+@AllArgsConstructor
+public enum AuthStackoverflowScope implements AuthScope {
+
+    /**
+     * {@code scope} 含义，以{@code description} 为准
+     */
+    read_inbox("read_inbox", "access a user's global inbox", true),
+    NO_EXPIRY("no_expiry", "access_token's with this scope do not expire", false),
+    WRITE_ACCESS("write_access", "perform write operations as a user", false),
+    PRIVATE_INFO("private_info", "access full history of a user's private actions on the site", false);
+
+    private String scope;
+    private String description;
+    private boolean isDefault;
+
+    public static List<AuthScope> getDefaultScopes() {
+        AuthStackoverflowScope[] scopes = AuthStackoverflowScope.values();
+        List<AuthScope> defaultScopes = new ArrayList<>();
+        for (AuthStackoverflowScope scope : scopes) {
+            if (scope.isDefault()) {
+                defaultScopes.add(scope);
+            }
+        }
+        return defaultScopes;
+    }
+
+    public static List<String> listScope() {
+        return Arrays.stream(AuthStackoverflowScope.values()).map(AuthStackoverflowScope::getScope).collect(Collectors.toList());
+    }
+}
diff --git a/src/main/java/me/zhyd/oauth/request/AuthStackOverflowRequest.java b/src/main/java/me/zhyd/oauth/request/AuthStackOverflowRequest.java
index 9c301bb2748cf387b82eac80ca10009adb9b0dd0..750c7bd2694617fae9bac527eb5e1d836194e1e4 100644
--- a/src/main/java/me/zhyd/oauth/request/AuthStackOverflowRequest.java
+++ b/src/main/java/me/zhyd/oauth/request/AuthStackOverflowRequest.java
@@ -1,17 +1,18 @@
 package me.zhyd.oauth.request;
 
 import com.alibaba.fastjson.JSONObject;
-import me.zhyd.oauth.utils.HttpUtils;
 import com.xkcoding.http.constants.Constants;
 import com.xkcoding.http.support.HttpHeader;
 import com.xkcoding.http.util.MapUtil;
 import me.zhyd.oauth.cache.AuthStateCache;
 import me.zhyd.oauth.config.AuthConfig;
 import me.zhyd.oauth.enums.AuthUserGender;
+import me.zhyd.oauth.enums.scope.AuthStackoverflowScope;
 import me.zhyd.oauth.exception.AuthException;
 import me.zhyd.oauth.model.AuthCallback;
 import me.zhyd.oauth.model.AuthToken;
 import me.zhyd.oauth.model.AuthUser;
+import me.zhyd.oauth.utils.HttpUtils;
 import me.zhyd.oauth.utils.UrlBuilder;
 
 import java.util.Map;
@@ -85,12 +86,8 @@ public class AuthStackOverflowRequest extends AuthDefaultRequest {
      */
     @Override
     public String authorize(String state) {
-        return UrlBuilder.fromBaseUrl(source.authorize())
-            .queryParam("response_type", "code")
-            .queryParam("client_id", config.getClientId())
-            .queryParam("redirect_uri", config.getRedirectUri())
-            .queryParam("scope", "read_inbox")
-            .queryParam("state", getRealState(state))
+        return UrlBuilder.fromBaseUrl(super.authorize(state))
+            .queryParam("scope", this.getScopes(",", false, AuthStackoverflowScope.getDefaultScopes()))
             .build();
     }