Rotation positioning structure of micromotor rotor

The utility model relates to a rotation positioning structure of a micromotor rotor. The rotation positioning structure comprises a frame body, a magnet and a rotation piece, wherein the frame body isprovided with a forked part, and a magnet arranged on the forked part surrounds the rotor pole of the inserted rotor; open slots allowing the rotor optical shafts to be inserted in a sliding manner are formed in the upper and lower sides of the frame body, and the slot widths of the open slots are slightly greater than the shaft diameters of the rotor optical shafts; the autorotation piece is arranged at the joint of the bifurcation parts, a fine eccentric distance is formed between the axis of the optical axis of the rotor inserted into the rotor and the axis of the autorotation piece, and the inserted rotor is attracted by the magnet to get close forwards and touch the autorotation piece to form a structure of autorotation of the rotator of the autorotation piece and automatic rotationof the inserted rotor; and