The utility model discloses a laser interferometer uses training set, including quick -witted bed base, the universal adjusting device of plane gradient, workstation, laser interferometer transmissionhead, first pentaprism, second pentaprism, 6 D sensing unit, lathe main shaft, its characterized in that: are universal adjusting device of plane gradient and workstation fixed connection passed through to machine bed base top, and gradient universal adjusting device in plane is used for regulated work platform installation angle, and laser interferometer transmission head is connected with workstation top one end, and the second pentaprism is located the workstation other end, first pentaprism output window and 6 D sensing unit input is coaxial, 6 D sensing unit and lathe main shaft fixedconnection. Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a laser interferometer uses training set solves unable change relation of demonstrateing between lathe error and the interferometer measurement data in the interferometer uses training process.