As the development of industrial robot, the robot application in measure also more and more be taken seriously. The robot measures measure to have online, agile, efficient wait for a characteristic, can implement pair of parts the measurement of 100 ％ . Accordingly, special agree with automation production system is measured with the process between medium working procedure. Measure machine photograph to compare with coordinate, the robot measures cost low, use agile and join a line easily. The robot measures cent directly with indirect measurement, measure directly call measure absolutely, it is by the machine the person participates in test and data processing, it asks the robot has taller athletic precision and fixed position precision, cost is accordingly higher also. Indirect measurement also says to assist measure, the characteristic is to measuring coordinate of the robot in the process to move to be not participated in measure a process, the movement that its task is imitate person will measure a tool or sensor sends to measure the place, by measure an instrument to finish test and data to transmit a process. Indirect measurement is taller to sensor and measurement unit requirement, because allow a robot,motion or fixed position error exist in measuring a process, accordingly, sensor or the intelligence with measure an instrument to should be had certain and flexible, can undertake attitude is mixed the position is adjusted and finish independently measure the job. Measuring a robot can be general general industry robot, if be on turning transfer matic, the robot can expect to undertake metrical after the job in the fluctuation that finish, and need not install a robot technically to measure, make a robot online have a variety of use. Because the robot measures measure to have online, agile, efficient wait for a characteristic, special agree with measure with the process between the working procedure in FMS, already received wide application in FMS. CNC MillingCNC Machining