diff --git a/migrations/010_post_word_counts.sql b/migrations/010_post_word_counts.sql
new file mode 100644
index 0000000..776f76b
--- /dev/null
+++ b/migrations/010_post_word_counts.sql
@@ -0,0 +1,8 @@
+-- 为 posts 表添加字数与阅读时长列。
+--
+-- 旧数据默认 0，在管理员执行重建或编辑文章后自动回填。
+-- 0 也被 row_to_post_full 用作“未计算”标记，触发基于 content_md 的回退计算。
+
+ALTER TABLE posts
+    ADD COLUMN IF NOT EXISTS word_count INTEGER NOT NULL DEFAULT 0,
+    ADD COLUMN IF NOT EXISTS reading_time INTEGER NOT NULL DEFAULT 0;
diff --git a/src/api/posts/create.rs b/src/api/posts/create.rs
index d485f27..7e10a6c 100644
--- a/src/api/posts/create.rs
+++ b/src/api/posts/create.rs
@@ -91,6 +91,10 @@ pub async fn create_post(
         let post_status = PostStatus::from_str(&status).unwrap_or(PostStatus::Draft);
         let cover_image = cover_image.filter(|s| !s.trim().is_empty());
 
+        // 计算字数与阅读时长，随文章一并持久化，供列表查询直接使用。
+        let word_count = crate::utils::text::count_words(&content_md);
+        let reading_time = (word_count / 200).max(1);
+
         // 发布状态的文章设置当前发布时间；草稿则为 None。
         let published_at = if post_status == PostStatus::Published {
             Some(chrono::Utc::now())
@@ -106,8 +110,8 @@ pub async fn create_post(
         // 插入文章记录。
         let row = tx
             .query_one(
-                "INSERT INTO posts (author_id, title, slug, summary, content_md, content_html, toc_html, status, published_at, cover_image)
-                 VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)
+                "INSERT INTO posts (author_id, title, slug, summary, content_md, content_html, toc_html, status, published_at, cover_image, word_count, reading_time)
+                 VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)
                  RETURNING id",
                 &[
                     &user.id,
@@ -120,6 +124,8 @@ pub async fn create_post(
                     &post_status.as_str(),
                     &published_at,
                     &cover_image,
+                    &(word_count as i32),
+                    &(reading_time as i32),
                 ],
             )
             .await
diff --git a/src/api/posts/update.rs b/src/api/posts/update.rs
index ed2ebe4..f28069d 100644
--- a/src/api/posts/update.rs
+++ b/src/api/posts/update.rs
@@ -55,6 +55,10 @@ pub async fn update_post(
         let post_status = PostStatus::from_str(&status).unwrap_or(PostStatus::Draft);
         let cover_image = cover_image.filter(|s| !s.trim().is_empty());
 
+        // 重新计算字数与阅读时长，保持与正文同步。
+        let word_count = crate::utils::text::count_words(&content_md);
+        let reading_time = (word_count / 200).max(1);
+
         let tx = client.transaction().await.map_err(AppError::tx)?;
 
         // 查询旧 slug，用于后续缓存失效。
@@ -150,8 +154,8 @@ pub async fn update_post(
         // 更新文章主表。
         let updated = tx
             .execute(
-                "UPDATE posts SET title = $1, slug = $2, summary = $3, content_md = $4, content_html = $5, toc_html = $6, status = $7, published_at = $8, cover_image = $9, updated_at = NOW()
-                 WHERE id = $10",
+                "UPDATE posts SET title = $1, slug = $2, summary = $3, content_md = $4, content_html = $5, toc_html = $6, status = $7, published_at = $8, cover_image = $9, word_count = $10, reading_time = $11, updated_at = NOW()
+                 WHERE id = $12",
                 &[
                     &title.trim(),
                     &final_slug,
@@ -162,6 +166,8 @@ pub async fn update_post(
                     &post_status.as_str(),
                     &published_at,
                     &cover_image,
+                    &(word_count as i32),
+                    &(reading_time as i32),
                     &post_id,
                 ],
             )