The invention discloses a position-adjustable simulative rotor on automatic stator performance detecting equipment. Guiding slots running through the bottom surface of a fixing base are formed in the side walls of the fixing base; an adjusting base is inserted into the fixing base; the two side walls of the adjusting base are pressed against the inner wall of the fixing base, and guiding blocks are formed; the guiding blocks are inserted into the guiding slots of the fixing base; the fixing base is hinged to a horizontal rotating shaft through a bearing; a simulative rotor sleeves the front end of the rotating shaft in a fixed manner; photoelectric sensors are fixed to the adjusting base on the upper side and the lower side of the simulative rotor; studs are formed on the upper end surface of the adjusting base; the upper ends of the studs run through the fixing base and are in threaded connection with driven gears; a motor mounting plate is arranged on the top surface of the fixing base; supporting plates are formed on the motor mounting plate; limiting notches are formed in the lower ends of the supporting plates; the driven gears are inserted into the limiting notches in the supporting plates. The simulative rotor disclosed by the invention can automatically adjust the height, so that the simulative rotor can be applied to testing of stators with a variety of models.