diff --git a/src/engine/pipeline.rs b/src/engine/pipeline.rs
index 0bcfa3b..3d4e40e 100644
--- a/src/engine/pipeline.rs
+++ b/src/engine/pipeline.rs
@@ -203,6 +203,21 @@ pub async fn phase_detect_person_in_tags(db: &Database) -> (DirtySet, usize) {
                 let (primary, aliases) = title_parser::split_person_name_with_aliases(person_name);
                 let final_name = if primary.is_empty() { person_name.clone() } else { primary };
 
+                // 跳过字符串 <= 2 的人名（太短不像人名）
+                if final_name.chars().count() <= 2 {
+                    // 仍需将标签从 clean_tags 中排除（人名相关标签已被移除）
+                    let tags_json_new = serde_json::to_string(&clean_tags).unwrap_or_else(|_| "[]".to_string());
+                    let all_words_json = album.all_words.as_deref().unwrap_or("[]");
+                    let all_words_new: Vec<[String; 2]> = serde_json::from_str::<Vec<[String; 2]>>(all_words_json)
+                        .unwrap_or_default()
+                        .into_iter()
+                        .filter(|pair| !known_persons.contains(&pair[0].to_lowercase()))
+                        .collect();
+                    let words_json_new = serde_json::to_string(&all_words_new).unwrap_or_else(|_| "[]".to_string());
+                    db.update_album_tags(&album.id, &tags_json_new, &words_json_new).await;
+                    continue;
+                }
+
                 // 用事务包裹所有写入，避免逐条 autocommit 导致巨慢
                 let mut tx = db.pool.begin().await.expect("begin tx");
                 db.update_album_person_with_tx(&mut tx, &album.id, person_name, &final_name).await;
@@ -386,6 +401,12 @@ pub async fn phase_parse_dirty(db: &Database, dirty_set: &DirtySet) -> (usize, u
         if let Some(name) = &best_person {
             let (primary, aliases) = title_parser::split_person_name_with_aliases(name);
             let final_name = if primary.is_empty() { name.clone() } else { primary };
+
+            // 跳过字符串 <= 2 的人名（太短不像人名）
+            if final_name.chars().count() <= 2 {
+                continue;
+            }
+
             let mut tx = db.pool.begin().await.expect("begin tx");
             db.update_album_person_with_tx(&mut tx, &album.id, name, &final_name).await;
             let pid = db.insert_person_with_tx(&mut tx, &final_name, None).await;
diff --git a/src/engine/title_parser.rs b/src/engine/title_parser.rs
index 4eaf987..e1f8645 100644
--- a/src/engine/title_parser.rs
+++ b/src/engine/title_parser.rs
@@ -340,7 +340,8 @@ pub fn is_excluded_name(name: &str) -> bool {
 pub fn is_likely_person_name(name: &str) -> bool {
     let name = name.trim();
     if name.is_empty() { return false; }
-    if name.len() < 2 { return false; }
+    // 字符数必须 >= 3（人名至少需要 2 个中文字或 3 个英文字母）
+    if name.chars().count() <= 2 { return false; }
 
     // 先排除已知的非人名
     if is_excluded_name(name) { return false; }