diff --git a/scripts/dev-env.ps1 b/scripts/dev-env.ps1
index 49e59ca..88ac70e 100644
--- a/scripts/dev-env.ps1
+++ b/scripts/dev-env.ps1
@@ -101,9 +101,10 @@ function Invoke-Start {
     if ($ffArgs) {
         $ffPath = (Get-Command $ffmpeg -ErrorAction SilentlyContinue).Source
         if (-not $ffPath) { $ffPath = $ffmpeg }
-        $ffCmd = "`"$ffPath`" $($ffArgs -join ' ')"
-        Start-Process "cmd" -ArgumentList "/k", $ffCmd
-        Write-Host "  [START] ffmpeg (cmd窗口)" -ForegroundColor Green
+        $bat = Join-Path $edgeDir "scripts\ffmpeg-push.bat"
+        "@echo off`r`nchcp 65001 >nul`r`n`"$ffPath`" $($ffArgs -join ' ')" | Out-File -FilePath $bat -Encoding UTF8
+        Start-Process "cmd" -ArgumentList "/k", $bat
+        Write-Host "  [START] ffmpeg (bat窗口)" -ForegroundColor Green
     }
 
     # 3. Media server (runs on RK3588, not local)