Based　on　high-speed　camera　image　measuring　and　processing　technology,　the　idea　and　approach　of　testing　and　design　for　intelligent　electrical　apparatus＇　dynamic　characteristics　were　proposed.　The　intelligent　AC　contactor＇s　dynamic　process　testing　was　used　as　an　example.　The　testing　principle,　image　processing　theory　and　method　of　the　high-speed　camera-based　intelligent　AC　contactor　dynamic　characteristics　testing　device　were　also　presented.　The　device　was　used　to　verify　the　ANSYS　and　ADAMS-based　comprehensive　simulation　results　of　the　intelligent　AC　contactor＇s　action　mechanism＇s　dynamic　characteristics　in　its　closing　process　and　opening　process.　The　result　verified　the　correctness　of　the　simulation　method.　This　testing　principle　and　image　processing　method　apply　to　not　only　the　research　of　the　intelligent　AC　contactor,　but　also　the　intelligentize　research　of　other　electrical　apparatus.　©　Chin.　Soc.　for　Elec.　Eng.