A special motor for a circular weaving machine comprises a permanent magnet brushless direct-current motor or permanent magnet synchronous motor, a permanent magnet brushless direct-current motor or permanent magnet synchronous motor controller and a motor transmission system, wherein the permanent magnet brushless direct-current motor or permanent magnet synchronous motor controller comprises a control module, an angular position measuring unit, a speed obtaining and feedback module and an initial positioning module; the angular position measuring unit is used for measuring angular position signals of a stator and a rotor of the permanent magnet brushless direct-current motor or permanent magnet synchronous motor; the speed obtaining and feedback module is used for outputting a real speed signal of the permanent magnet brushless direct-current motor or permanent magnet synchronous motor and feeding the real speed signal back to the control module. Compared with a conventional alternating-current asynchronous motor, the motor has the advantages that the permanent magnet brushless direct-current motor or permanent magnet synchronous motor is adopted on the circular weaving machine, so that the motor has high efficiency, high power factor, good capacity index, small size, low weight and low temperature rise.