The invention provides a multifunctional bathroom cabinet integrated with a magnetic energy water heater and belongs to the technical field of bathroom products. The multifunctional bathroom cabinet mainly comprises a cabinet body and the magnetic energy water heater, wherein a tabletop is arranged at the top of the cabinet body; a hand washing cabin is arranged on the tabletop; surface covers are arranged on the left and right sides, and the back surface of the cabinet body; an opening is formed in the front surface of the cabinet body and a cabinet door is arranged at the opening; a horizontal separation plate for separating an inner chamber of the cabinet body into an upper chamber and a lower chamber is arranged at the upper part of the cabinet body; the magnetic energy water heater is horizontally arranged in a lower chamber; the magnetic energy water heater comprises a water storage tank and a water heater controller; a magnetic energy receiver is fixedly mounted at one end of the water storage tank; the magnetic energy water heater is detachably connected with the magnetic energy receiver; and vent holes are formed in the parts, close to the surface covers of a magnetic energy generator, on the cabinet body. The bathroom cabinet provided by the invention has a plurality of functions of washing, storing, taking a bath and the like; and the ventilation problem of the magnetic energy water heater is solved by the design, and the bathroom cabinet also has more storage space.