diff --git a/src/main/java/com/tuoheng/steam/dos/StreamProcess.java b/src/main/java/com/tuoheng/steam/dos/StreamProcess.java
index 6e2efcf..265cabc 100644
--- a/src/main/java/com/tuoheng/steam/dos/StreamProcess.java
+++ b/src/main/java/com/tuoheng/steam/dos/StreamProcess.java
@@ -15,7 +15,9 @@ public class StreamProcess implements Serializable {
     ProcessType processType;
     String fileName;
 
-
+    public Process getProcess() {
+        return process;
+    }
 
     public String startTime(){
         return TimeUtils.formatDateToString(createTime);
diff --git a/src/main/java/com/tuoheng/steam/service/TaskService.java b/src/main/java/com/tuoheng/steam/service/TaskService.java
index 5c13eec..5259667 100644
--- a/src/main/java/com/tuoheng/steam/service/TaskService.java
+++ b/src/main/java/com/tuoheng/steam/service/TaskService.java
@@ -184,13 +184,32 @@ public class TaskService implements ITaskService{
 
             if (!CollectionUtils.isEmpty(currentStreamTask.getStreamProcesses())) {
                 for (StreamProcess streamProcess : currentStreamTask.getStreamProcesses()) {
-                    if(!new File(streamProcess.getFileName()).exists()){
-                        recordSuccess = false;
-                        logger.error("流录制失败: streamUrl {} taskId {} destroy Process {}", streamUrl,currentStreamTask.getTaskId() ,streamProcess.getInnerProcessId());
-                    }else {
-                        logger.info("streamUrl {} taskId {} destroy Process {}", streamUrl,currentStreamTask.getTaskId() ,streamProcess.getInnerProcessId());
-                    }
+
                     streamProcess.destroy();
+
+                    try {
+                        if (streamProcess.getProcess() != null) {
+                            boolean finished = streamProcess.getProcess().waitFor(10, TimeUnit.SECONDS);
+                            if (finished) {
+                                logger.info("进程 {} 已完全结束", streamProcess.getInnerProcessId());
+                            } else {
+                                logger.warn("进程 {} 超时，强制终止", streamProcess.getInnerProcessId());
+                                streamProcess.getProcess().destroyForcibly();
+                            }
+                        }
+                    } catch (InterruptedException e) {
+                        logger.warn("等待进程结束被中断: {}", streamProcess.getInnerProcessId());
+                        Thread.currentThread().interrupt();
+                    }
+
+                    File file = new File(streamProcess.getFileName());
+                    if(!file.exists() || file.length() == 0){
+                        recordSuccess = false;
+                        logger.error("流录制失败: streamUrl {} taskId {} Process {} 文件不存在或为空", streamUrl,currentStreamTask.getTaskId() ,streamProcess.getInnerProcessId());
+                    }else {
+                        logger.info("streamUrl {} taskId {} Process {} 文件有效，大小: {} bytes", streamUrl,currentStreamTask.getTaskId() ,streamProcess.getInnerProcessId(), file.length());
+                    }
+
                 }
             }
 
diff --git a/src/main/java/com/tuoheng/steam/service/innerService/ProcessService.java b/src/main/java/com/tuoheng/steam/service/innerService/ProcessService.java
index 9514be3..17c9ff1 100644
--- a/src/main/java/com/tuoheng/steam/service/innerService/ProcessService.java
+++ b/src/main/java/com/tuoheng/steam/service/innerService/ProcessService.java
@@ -13,8 +13,10 @@ import org.springframework.stereotype.Service;
 
 import java.io.BufferedReader;
 import java.io.File;
+import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.io.PrintWriter;
 import java.util.*;
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -37,6 +39,9 @@ public class ProcessService {
     private String recordPath;
 
     private static final Logger logger = LoggerFactory.getLogger(ProcessService.class);
+    
+    // 缓存 FFmpeg 功能支持状态
+    private Boolean ffmpegSupportsConcat = null;
 
     /**
      * 任务池
@@ -240,10 +245,10 @@ public class ProcessService {
 
         List<String> fileList = new ArrayList<>();
         for(StreamProcess streamProcess : streamProcesses){
-            File newFile = new File(streamProcess.getFileName());
-            if(newFile.exists()){
+//            File newFile = new File(streamProcess.getFileName());
+//            if(newFile.exists()){
                 fileList.add(streamProcess.getFileName());
-            }
+//            }
         }
 
 
@@ -257,10 +262,28 @@ public class ProcessService {
                      ffmpeg+ " -i %s -c copy %s",
                     fileList.get(0), outFileName);
         }else {
-            String filePaths = String.join("|", fileList);
+            // 使用 concat demuxer 来更好地处理多个 ts 文件
+            String concatFile = targetPath + "/concat_" + UUID.randomUUID().toString() + ".txt";
+            try (PrintWriter writer = new PrintWriter(new FileWriter(concatFile))) {
+                for (String fileName : fileList) {
+                    writer.println("file '" + fileName + "'");
+                }
+            }
+            
             command = String.format(
-                    ffmpeg+ " -i \"concat:%s\" -c copy %s",
-                    filePaths, outFileName);
+                    ffmpeg+ " -f concat -safe 0 -i %s -c copy %s",
+                    concatFile, outFileName);
+            
+            // 合并完成后删除临时 concat 文件
+            final String finalConcatFile = concatFile;
+            loggingService.execute(() -> {
+                try {
+                    Thread.sleep(5000); // 等待5秒确保合并完成
+                    new File(finalConcatFile).delete();
+                } catch (Exception e) {
+                    logger.warn("删除临时 concat 文件失败: {}", finalConcatFile);
+                }
+            });
         }
         logger.info("mergeStream {}", command);
         ProcessBuilder pb = new ProcessBuilder(command.split(" "));