Micro　stereovision　technology　has　been　widely　used　in　the　small　scale　micro　objects　which　are　not　convenient　observed　for　human　eyes,　through　micromanipulation　and　other　ways　to　do　image　reconstruction　for　the　object　surface　and　show　them　out　in　the　computer,　but　during　the　operation,　the　precision　problem　of　the　position　control　system　and　the　microgripper　system　relation　to　the　precision　of　micro　stereovision　system.　This　paper　built　the　camera　projection　model　based　on　the　micro　stereovision　system　and　have　done　lots　of　displacement　experiments　of　the　mobile　platform　and　the　gripper　reconstruction　experiments　of　microgripper　system,　through　statistical　analyzed　these　experiment　data　to　show　the　accuracy　of　the　microgripper　system.