diff --git a/apps/common/handle/impl/media/media_split_handle.py b/apps/common/handle/impl/media/media_split_handle.py
index d584429f..ad84392a 100644
--- a/apps/common/handle/impl/media/media_split_handle.py
+++ b/apps/common/handle/impl/media/media_split_handle.py
@@ -335,89 +335,39 @@ class MediaSplitHandle(BaseSplitHandle):
             return f"{minutes:02d}:{secs:02d}"
 
     def smart_split_transcription(self, text, limit=1000, overlap=100):
-        """智能分割转录文本"""
+        """简单分割转录文本 - 按字符切割，保留重叠"""
         maxkb_logger.info(f"🔧 smart_split_transcription called - text length: {len(text)}, limit: {limit}, overlap: {overlap}")
 
         if len(text) <= limit:
             maxkb_logger.info(f"✅ Text length {len(text)} <= limit {limit}, no splitting needed")
             return [text]
 
-        # 预处理：移除过多的空行
-        original_length = len(text)
-        text = '\n'.join(line for line in text.split('\n') if line.strip())
-        cleaned_length = len(text)
-        maxkb_logger.info(f"🧹 Text preprocessing: {original_length} -> {cleaned_length} characters")
+        text_len = len(text)
+        step = limit - overlap  # 每次前进的步长
 
+        # 直接计算所有chunk
+        chunk_count = (text_len - overlap) // step + 1
         chunks = []
-        start = 0
-        iteration = 0
-        max_iterations = len(text) // (limit // 2) + 10  # 防止无限循环
 
-        while start < len(text) and iteration < max_iterations:
-            iteration += 1
-            maxkb_logger.info(f"🔄 Iteration {iteration}: start={start}, text_length={len(text)}")
+        for i in range(chunk_count):
+            start = i * step
+            end = min(start + limit, text_len)
 
-            # 计算当前块的结束位置
-            end = min(start + limit, len(text))
-            maxkb_logger.info(f"📍 Initial end position: {end}")
-
-            # 如果不是最后一块，尝试在句号处断开
-            if end < len(text):
-                # 寻找最佳断点
-                best_end = end
-
-                # 优先在句号处断开
-                last_period = text.rfind('。', start, end)
-                maxkb_logger.info(f"🔍 Last period position: {last_period}")
-
-                if last_period > start + limit // 2:
-                    best_end = last_period + 1
-                    maxkb_logger.info(f"✂️ Splitting at period: position {best_end}")
-                else:
-                    # 其次在换行符处断开
-                    last_newline = text.rfind('\n', start, end)
-                    maxkb_logger.info(f"🔍 Last newline position: {last_newline}")
-
-                    if last_newline > start + limit // 3:
-                        best_end = last_newline + 1
-                        maxkb_logger.info(f"✂️ Splitting at newline: position {best_end}")
-                    else:
-                        maxkb_logger.info(f"⚠️ No good split point found, using default position {end}")
-
-                end = best_end
-
-            # 提取当前块
             chunk = text[start:end].strip()
-            chunk_length = len(chunk)
-            maxkb_logger.info(f"📦 Chunk {len(chunks)+1}: length={chunk_length}, start={start}, end={end}")
-            maxkb_logger.info(f"📝 Chunk preview: '{chunk[:100]}...'")
-
             if chunk:
                 chunks.append(chunk)
-            else:
-                maxkb_logger.warning(f"⚠️ Empty chunk created, skipping")
+                maxkb_logger.info(f"📦 Chunk {i+1}: length={len(chunk)}, positions=({start}, {end})")
 
-            # 计算下一块的开始位置（考虑重叠）
-            # 修复：确保start总是增加的
-            old_start = start
-            start = max(end - overlap, end - chunk_length // 2)
+        # 处理最后可能遗漏的部分
+        if chunks:
+            last_end = chunks[-1] and (len(chunks) - 1) * step + limit or 0
+            if last_end < text_len:
+                chunk = text[last_end:].strip()
+                if chunk:
+                    chunks.append(chunk)
+                    maxkb_logger.info(f"📦 Final chunk: length={len(chunk)}")
 
-            # 确保至少前进1个字符
-            if start <= old_start:
-                start = old_start + 1
-                maxkb_logger.warning(f"⚠️ Adjusting start position to prevent infinite loop: {start}")
-
-            maxkb_logger.info(f"➡️ Next start position: {start}")
-
-            # 避免无限循环
-            if start >= len(text):
-                maxkb_logger.info(f"🏁 Reached end of text")
-                break
-
-        if iteration >= max_iterations:
-            maxkb_logger.error(f"❌ Max iterations ({max_iterations}) reached, potential infinite loop")
-
-        maxkb_logger.info(f"✅ Split completed: {len(chunks)} chunks created in {iteration} iterations")
+        maxkb_logger.info(f"✅ Split completed: {len(chunks)} chunks created")
         return chunks
 
     def _apply_smart_split(self, result: dict, limit: int = 1000, with_filter: bool = False):