Responsive　emulsions　are　the　emulsions　that　can　be　reversibly　switched　on-demand　between　＂stable＂　and　＂unstable＂　by　environmental　stimulus　or　trigger,　which　allows　a　simple　and　effective　adjustment　approach　to　achieve　emulsification　and　demulsification.　In　recent　years,　stimuli-responsive　emulsions　acting　as　smart　soft　material　are　received　considerable　attention　with　the　advantages　of　simple　manipulation,　good　reversibility,　low　cost,　easy　treatment,　and　little　effect　on　the　system.　In　this　paper,　the　recent　research　progress　of　emulsions　that　can　respond　to　external　stimuli,　including　pH,　light,　magnetic　field,　CO2/N-2　and　dual　responsive　are　reviewed.　Also,　the　potential　applications　based　on　responsive　emulsion　are　discussed,　such　as　catalytic　reactions,　heavy　oil　recovery,　polymer　particles　synthesis　and　optical　sensor,　aiming　to　summarize　the　latest　achievements　and　put　forward　the　possible　development　trends　of　responsive　emulsions.　(C)　2021　The　Chemical　Industry　and　Engineering　Society　of　China,　and　Chemical　Industry　Press　Co.,　Ltd.　All　rights　reserved.