Magnetic hook device

A magnetic clipping hook device comprises a first magnet, a second magnet which is towards the first magnet in the same polar, a clipping hook which is connected with the second magnet and is used for locking an object. The first magnet is fixed in a casing, the computer casing is provided with a groove and a channel, the groove and the channel are communicated with each other and are respectively used for containing a discharge component, the clipping hook, and the second magnet, the discharge component is connected with the clipping hook. The utility model utilize the magnets instead of springs, although in a long time magnetism of the magnets will be depleted, the ratio is small, which will not influence the normal operation of the magnets. Thereby after the long-time usage, the clipping hook can still normally lock a battery, which can solve the problem of the lost of the spring elasticity.