▎ 摘　　要

NOVELTY - The motor has a magnetic tent provided with two parts of a permanent magnet. N-level portion of the permanent magnet faces towards the magnetic tent, where another portion S pole of the permanent magnet faces towards the magnetic tent. An iron core-free coil is placed in radial magnetic field of the magnetic tent through a rotating shaft. A coil is connected to the magnetic tent through a graphene lead. Two parts of the permanent magnet are provided with neodymium iron boron-plated graphene sheets that are connected to the magnetic tent. USE - Micro iron core-free motor for commercial small rotor wing drone. ADVANTAGE - The motor has light weight material, strong revolving force, high efficient and strong anti-interference ability, and reduces power consumption and quickly and effectively controls an unmanned aerial vehicle for urban management, agriculture, emergency task and aerial photography according to an instruction signal sent by a ground control system or a command center.