The　GMAW　droplet　transfer　models　of　solid　wire　were　reviewed.　The　developing　processes　of　GMAW　droplet　transfer　simulation　were　briefly　summarized,　SFBT　(static　force　balance　theory),　PIT　(pinch　instability　theory),　and　VOF　theory　were　mainly　discussed.　The　conclusions　are　that　the　results　predicted　by　VOF　method　are　more　close　to　the　experimental　ones　compared　with　that　by　SFBT　and　PIT　method.　Metal　vapor　pressure　or　more　other　factors　should　be　considered　for　the　purpose　of　improving　consistency　between　computational　results　and　experimental　ones.