An automotive handbrake magnetic lock comprises a shell, a lock and a magnetic device; the lock is connected with the magnetic device which is composed of a magnetizer and a rotating magnetic core; a groove is arranged under the magnetizer; the groove is arranged under the rotating magnetic core; and the shape of the groove is the same as the shape of the keystroke of an automotive handbrake. Whenin use, the automotive handbrake is pulled up and the groove of the automotive handbrake magnetic lock is sheathed on the keystroke of the automotive handbrake; by using a key to rotate the lock corefor locking, the rotating magnetic core is driven to rotate, thereby leading the keystroke of the automotive handbrake to be tightly sucked in the groove of the automotive handbrake magnetic lock; and by utilizing magnetic material with high magnetic strength, the keystroke and the groove are sucked by the magnetic force, and thus being hard to separate or press down, thereby enhancing the difficulty for the thieves to steal the vehicle. When the automotive handbrake magnetic lock is opened, by utilizing the key to rotate the lock core by 90 degrees so as to eliminate the magnetic line of therotating magnetic core passing through the keystroke, the automotive handbrake magnetic lock can be opened.