Electrical cabinet convenient for adjusting front and back positions of mounting plate

The utility model relates to the field of electrical cabinets, and discloses an electrical cabinet convenient for adjusting the front and back positions of a mounting plate, which comprises a cabinet body, strip-shaped mounting seats symmetrically mounted on the inner wall of the cabinet body, and a mounting plate of which the two ends are connected to the mounting seats, a first sliding groove and a second sliding groove which extend in the length direction of the installation base are formed in the upper end of the installation base and the side, close to the installation plate, of the installation base correspondingly. Positioning blocks are fixedly connected to the left end and the right end of the mounting plate, and upper block bodies and lower block bodies of the positioning blocks are in sliding fit with the first sliding grooves and the second sliding grooves correspondingly; a first positioning hole penetrating up and down is formed in the upper block body, and a plurality of second positioning hole