The invention discloses a switch cabinet convenient to assemble and disassemble. The switch cabinet comprises a fixing plate, wherein a sliding table is arranged on one side of the fixing plate; a connection boss is arranged on one side, far away from the fixing plate, of the sliding table; the connection boss is connected with the sliding table via a rectangular sliding chute formed in the connection boss; a switch protective cover shell is connected with one side, far away from the sliding table, of the connection boss via a fastening bolt; a turn cover is connected with one side of the switch protective cover shell via a hinge; one end of a pull cord is connected with one side of the turn cover, the switch protective cover shell and the connection boss are installed and connected via the fastening bolt, and an installation hole is formed in the middle of the inner part of the installation plate, so that the switch cabinet can be conveniently assembled and disassembled; when is in outdoor use, the switch cabinet can adapt to influences of rainy and snowy weather via the cooperated use of a sealing leakproof cushion and a rain baffle, the heat dissipation and ventilation effect can be greatly improved via a ventilating slot, and the seismic resistance of the switch can be improved by a damping spring arranged between the sliding table and the connection boss.