An amorphous alloy iron core permanent magnet brushless direct-current motor consists of the two portions including a motor body and a controller, wherein the motor body portion comprises a motor upper end cap, a motor lower end cap, a motor output shaft, a shaft sleeve, an upper framework, a lower framework, a stator coil, a stator iron core body, a rotor iron core body and neodymium iron boron permanent magnet block, and the controller portion comprises an aluminum metal based printing circuit board, a control cable, a double-core single chip microcomputer, a power VMOS tube and a Hall element. The amorphous alloy iron core permanent magnet brushless direct-current motor is characterized in that both the stator iron core body and the rotor iron core body are formed by superposing iron based amorphous alloy sheets, the stator iron core body is fixed through joint supporting of the upper framework and the lower framework, the stator coil is made by winding an anaerobic copper line, all of controller elements and circuits are integrated on the aluminum metal based printing circuit board, an outer thread is carved on the supporting aluminum metal cylinder of the aluminum metal based printing circuit board, the cylinder is screwed into the inner wall thread of the motor lower end cap during installation to form a motor body and controller mechanical-electrical integrated structure.