In　this　paper,　a　set　of　industrial　X-ray　film　digitizing　and　automatic　identification　system　is　established　with　machine　vision　equipment.　With　this　system,　the　industrial　film　can　be　digitalized　rapidly　and　in　high　space　resolution　reaching　to　860　DPI.　The　machine　vision　equipment　includes　linear　CCD,　light　source,　lens,　aperture　and　film-moving　machine.　The　controller　is　a　master-slave　mode,　which　includes　a　PC　as　the　upper　computer　and　an　embedded　system　as　the　lower　computer.　The　embedded　system　is　composed　by　ARM　and　FPGA　modules,　which　can　control　four　axis　motors　and　transmit　an　external　trigger　signals　to　the　CCD　in　real-time.　At　last,　a　series　of　image　processing　algorithm　is　also　developed　in　this　paper　to　identify　an　industrial　film　that　is　captured　to　test　coupling　alignment　of　the　casing　pipes.　The　testing　accuracy　is　0.06mm.