diff --git a/src/backend/media/biz-media/src/main/kotlin/com/tencent/bkrepo/media/stream/Mux.kt b/src/backend/media/biz-media/src/main/kotlin/com/tencent/bkrepo/media/stream/Mux.kt
index 5c0f36fdb3..68a8055d35 100644
--- a/src/backend/media/biz-media/src/main/kotlin/com/tencent/bkrepo/media/stream/Mux.kt
+++ b/src/backend/media/biz-media/src/main/kotlin/com/tencent/bkrepo/media/stream/Mux.kt
@@ -53,6 +53,7 @@ class Mux {
     private var avio: AVIOContext? = null
     private var running: AtomicBoolean = AtomicBoolean(false)
     private var stopFlag: AtomicBoolean = AtomicBoolean(false)
+    private var writeHeader = false
 
     fun start() {
         if (!running.compareAndSet(false, true)) {
@@ -126,7 +127,7 @@ class Mux {
             check(avformat.avformat_write_header(ofmtCtx, null as? PointerPointer<*>) >= 0) {
                 "Error occurred when opening output file"
             }
-
+            writeHeader = true
             var dts = 0L
             var count = 0L
             while (!stopFlag.get()) {
@@ -196,7 +197,9 @@ class Mux {
         }
 
         if (ofmtCtx != null) {
-            avformat.av_write_trailer(ofmtCtx)
+            if (writeHeader) {
+                avformat.av_write_trailer(ofmtCtx)
+            }
             logger.info("Finish remux $fileName to ${outputFile!!.absolutePath}")
             if (ofmtCtx!!.oformat().flags() and avformat.AVFMT_NOFILE == 0) {
                 avformat.avio_closep(ofmtCtx!!.pb())