As　the　Android＇s　growth　in　global　market　share,　the　security　problem　of　Android　OS　becomes　more　and　more　serious.　According　to　statistics,　there　are　84%　of　smartphone　users　use　Android　OS.　The　popularity　brings　not　only　wealth　into　Android　market　but　also　more　and　more　malicious　applications.　Malicious　developers　want　to　steal　private　information　such　as　credit　card　number,　contacts,　or　email　from　Android　phones.　Android　has　sustained　security　issue　for　a　long　time.　Academics　also　have　put　many　efforts　to　solve　the　problem.　Dynamic　analysis　is　one　of　the　methodologies　for　Android　malware　detection.　Current　execution　of　dynamic　analysis　needs　to　deploy　heavy　human　resources.　There　is　always　someone　needed　to　access　the　user　interface　manually,　or　the　work　can　hardly　be　finished.　In　this　work,　we　propose　an　approach　on　Android　UI　automation.　Our　implemented　system　output　an　Android　monkeyrunner　scripts,　which　is　custom　made　for　input　Apk.　The　script　program　can　trigger　UI　event　automatically　and　deal　with　exception　conditions　while　executed　in　monkeyrunner.　©　2018　by　the　authors.