Aomatic　transfer　switching　equipment　(ATSE)　is　widely　used　in　all　kinds　of　important　places　in　the　power　system,　and　takes　on　the　important　task　of　uninterrupted　power　supply.　It＇s　normal　and　spare　power　supply　switching　operation　is　a　complex　physical,　chemical,　and　mechanical　comprehensive　nonlinear　process,　the　transition　time　and　transformation　related　electrical　properties　of　the　pros　and　cons　of　directly　affects　the　stability　and　reliability　of　the　operation　of　the　product.　The　original　testing　and　analysis　of　the　electrical　performance　mainly　depends　on　the　instrument　method　and　the　way　of　manual　operation,　the　test　efficiency　is　low,　the　data　is　not　accurate　enough.　The　voltage　sensor,　an　SCM,　a　liquid　crystal　display　screen,　a　data　acquisition　card　design　and　implement　a　new　ATSE　integrated　characteristic　parameters　testing　&　analysis　platform,　by　single-chip　microcomputer　control　technology　to　realize　the　single-phase　and　three-phase　automatic　regulating　pressure,　auto　power　off　and　auto　switching　test　mode　and　other　functions;　introducing　singular　value　algorithm,　two　cursor　operation　is　implemented　in　waveform　point　mutation　of　precise　positioning,　to　automatically　calculate　the　characteristic　parameters　such　as,　power　supply　voltage　deviation,　contact　transfer　time,　operating　transfer　time,　total　operating　time,　return　transfer　time.　The　platform　optimizes　the　ATSE　products　test　process,　improve　the　detection　efficiency,　and　provide　a　good　way　for　the　accurate　and　reliable　testing　of　ATSE　products.