The invention discloses a pulling plug type magnetic lock capable of being locked through automatic spinning. The lock comprises a pull bolt (21), a sleeve (22), a sleeve inner plug (23), a brake ring (24), a rotary piece (25), a plug pin (26) and a plug pin drive assembly (27), wherein the pulling bolt (21) is fixed to one side of the lock, the top end of the pulling bolt (21) is provided with a flange, the sleeve (22) is fixed to the other side of the lock and can be inserted to the pulling bolt, the sleeve inner plug (23) is arranged in the sleeve and can axially move relative to the sleeve, the sleeve (22) is sleeved with the brake ring (24), the rotary piece (25) is arranged between the brake ring and the sleeve and can synchronously rotate with the brake ring, the plug pin (26) extends perpendicular to the axial direction of the brake ring, and one end of the plug pin (26) is matched with the a radial deformed region (24) on the outer wall of the brake ring to lock or release the brake ring. The rotary piece can be driven by the sleeve inner plug to rotate under the action of the downward force of the pulling bolt, and can be driven by the brake ring to rotate back under the action of the upward force of the pulling bolt. The pulling plug type magnetic lock capable of being locked through automatic spinning prevents ineffective locking caused by small electromagnetic force, and can achieve locking and unlocking with very small electromagnetic force; unlocking is achieved with the assist of the mechanical force, the lock structure is simplified, and working is more reliable.