Because　of　the　disadvantages,　such　as　larger　error　and　poor　flexibility,　in　visual　speed　measuring　systems,　a　novel　method　based　on　view　geometry　with　uncalibrated　camera　is　proposed　to　detect　the　speed　of　objects　on　the　conveyor　belt.　The　proposed　method　first　extract　reference　points　and　feature　points　by　off-line　and　on-line　image　processing　algorithms,　then　by　combining　with　the　visual　geometry　algorithm,　the　displacement　of　the　workpiece　can　be　calculated　within　the　images　of　adjacent　frames,　and　the　time　to　capture　and　process　the　image　of　adjacent　frames　is　recorded　at　the　same　time.　Finally,　the　speed　of　moving　object　is　calculated　by　the　kinematics　formula.　Utilizing　the　uncalibrated　camera　visual　system　to　detect　the　speed　of　the　workpiece　cannot　only　compensate　for　the　inflexibility　of　calibrated　camera　system,　but　also　reduce　the　impact　of　the　camera　calibration　error　and　lens　distortions.　Theexperimental　results　show　that　the　proposed　method　is　more　flexible　and　can　get　a　higher　precision.　©　2016,　Science　Press.　All　right　reserved.