The　core　of　programmable　droplet　transition　is　to　realize　the　controlled　directional　deflection　transition　of　the　droplets　in　a　certain　area,　and　to　regulate　the　droplet　landing　point　by　matching　laser　pulse　program.　On　the　basis　of　the　symmetric　arrangement　of　laser　pulses,　a　programmable　transition　control　strategy　is　proposed　in　the　paper　for　the　programmable　transition　of　molten　drops　driven　by　the　asymmetric　arrangement　of　bilateral　lasers.　The　effects　of　the　pulsed　laser　process　parameters　on　the　transition　behavior　and　deflection　angle　of　the　droplets　under　the　asymmetric　arrangement　are　investigated.　The　results　show　that,　unlike　the　symmetric　laser　arrangement,　one　side　of　the　asymmetric　laser　arrangement　irradiates　the　solid-liquid　interface　and　plays　a　cutting　role　at　that　point,　while　the　other　side　of　the　laser　irradiates　the　droplet　body　and　mainly　produces　an　impact　effect　on　the　droplet.　The　deflection　of　the　droplet　is　mainly　determined　by　the　impact　of　the　laser　on　the　droplet　on　the　right　side,　and　the　maximum　deflection　range　of　the　droplet　increases　to　55°.　A　calculation　model　for　the　impact　force　of　deflected　droplets　on　the　molten　pool　was　established　based　on　the　force　situation　of　the　droplets.　By　using　high-speed　cameras　to　capture　the　transition　process　of　the　droplets,　the　impact　force　of　the　droplets　on　the　molten　pool　can　be　calculated.　©　2025　Harbin　Research　Institute　of　Welding.　All　rights　reserved.