Industrial control box convenient for wiring

The utility model discloses an industrial control box convenient for wiring, which comprises a bottom box, a front cover, a rear cover, a wiring terminal, a circuit mainboard and a power supply, the circuit mainboard is arranged in the bottom box, the front cover and the rear cover are adjacently covered on the bottom box, the wiring terminal and the power supply are both electrically connected on the circuit mainboard, and the wiring terminal and the power supply are electrically connected on the bottom box. The left side wall and the right side wall of the rear cover are each provided with a connecting lug, each connecting lug is provided with a first screw, the front side of the rear cover extends downwards to form a partition wall of the top face of the circuit mainboard, the edge of the side, close to the front cover, of the rear cover is provided with a plurality of clamping grooves, the rear side of the front cover is provided with clamping teeth inserted into the clamping grooves, and the clamping tee