diff --git a/engine.go b/engine.go
index 7abe694..9abbf93 100644
--- a/engine.go
+++ b/engine.go
@@ -594,6 +594,13 @@ func (e *Engine) syncOnce(s *repoState, trigger string) {
 	s.mu.Unlock()
 	e.pushStatus(s)
 
+	if ahead > 0 && (cfg.Mode == "push" || cfg.Mode == "both") {
+		if !e.pushAll(s, cfg, ahead) {
+			// 推送失败，本轮终止，避免继续拉取加剧分叉
+			e.setFail(s, "推送失败，本轮同步已终止（跳过拉取以避免分叉加剧）")
+			return
+		}
+	}
 	if behind > 0 && (cfg.Mode == "pull" || cfg.Mode == "both") {
 		if !e.pullRemote(s, cfg, remote, behind) {
 			return
diff --git a/logs/git-auto-sync.log b/logs/git-auto-sync.log
index baf5483..d73d4f6 100644
--- a/logs/git-auto-sync.log
+++ b/logs/git-auto-sync.log
@@ -80,3 +80,10 @@ error: failed to push some refs to 'https://git.shiroko.one/tamakyi/github-auto-
 [2026-09-08 17:30:43] === 同步完成（本地领先 0，落后 0）===
 [2026-09-08 17:31:43] === 开始同步（定时检查，模式 push）===
 [2026-09-08 17:31:51] 检测到 4 个未提交改动，执行自动提交
+[2026-09-08 17:31:54] 自动提交完成，将随本轮同步推送
+[2026-09-08 17:31:56] 远程分支 origin/main 不存在（远程仓库可能为空或分支名不一致），将推送本地 12 个提交以建立远程分支
+[2026-09-08 17:31:58] 推送至 origin 失败: error: src refspec main does not match any
+error: failed to push some refs to 'https://git.shiroko.one/tamakyi/github-auto-sync-golang'
+[2026-09-08 17:31:59] === 同步完成（本地领先 0，落后 0）===
+[2026-09-08 17:32:59] === 开始同步（定时检查，模式 push）===
+[2026-09-08 17:33:07] 检测到 3 个未提交改动，执行自动提交
diff --git a/stats/git-auto-sync.csv b/stats/git-auto-sync.csv
index c4f048a..2c8f0a6 100644
--- a/stats/git-auto-sync.csv
+++ b/stats/git-auto-sync.csv
@@ -10,3 +10,4 @@ timestamp,action,result,commits
 2026-09-08 17:27:05,push,failed,9
 2026-09-08 17:28:21,push,failed,10
 2026-09-08 17:30:42,push,failed,11
+2026-09-08 17:31:58,push,failed,12