The invention provides an electromagnetic lock, belongs to the technical field of locks, and solves the problem of low stability of a traditional electromagnetic lock. The electromagnetic lock comprises a shell, a lock tongue whose one end is positioned in the shell, and a locking spring and an unlocking spring both sleeving the lock tongue; the leaving ends of the locking spring and the unlockingspring are both acted on the lock tongue; a cylindrical electromagnet is fixed in the shell; a gag bit slidingly arranged in the electromagnet, and is in a straight cylinder form; an inner end of thelock tongue slidingly penetrates through the gag bit; a push plate slidingly sleeves the lock tongue; the push plate is positioned between the locking spring and the unlocking spring; and the relative ends of the locking spring and the unlocking spring are both acted on the push plate; and the push plate is positioned in the gag bit, and is fixedly connected with the inner wall of the gag bit. The electromagnetic lock is higher in stability and longer in life.