Power box capable of reasonably installing circuit board

The utility model relates to the technical field of electronic accessories, and discloses a power box for reasonably installing a circuit board, which comprises a box body, the top of the box body is hinged with a box cover, the inner wall of the box body is fixedly provided with limiting plates, the circuit board is inserted between the limiting plates, and the inner bottom wall of the box body is fixedly provided with a fixing piece. According to the power box for reasonably installing the circuit boards, the multiple circuit boards are inserted into the limiting grooves and pushed downwards to be inserted into the fixing pieces, the circuit boards are connected with the surfaces of the limiting plates through the fixing strips and the fixing bolts, the head ends of the circuit boards are fixed, and when the circuit boards are inserted into the clamping bases, springs push the push plates to move; the push plate pushes the positioning balls to be clamped in the positioning grooves of the circuit boards, the