Laser fixing device applied to optical coordinate measuring instrument

The utility model provides a laser fixing device applied to an optical coordinate measuring instrument, and relates to the technical field of optical fiber sensing optical devices and fixing devices. Comprising a U-shaped base, a cuboid fixing block is arranged on the inner bottom face of the base, the width of the fixing block is smaller than that of the base, magnets are embedded in the two ends of the base respectively, magnetic fixing plates are arranged on the two sides of the base respectively, the ends of the fixing plates are attracted to the side faces of the ends of the base, and a positioning plate is arranged on the fixing block. A plurality of positioning grooves are formed in the two side faces of the positioning plate respectively. According to the utility model, the position of the butterfly-shaped laser is fixed and the vertical state of the butterfly-shaped laser is kept in a magnetic type fastening mode, so that the problems that in the prior art, because a reasonable fixing device is lacke