The utility model discloses a convenient maintenance electrical equipment box, including U -shaped support frame and box, the U -shaped support frame is provided with pillar, mounting panel, motor, pivot, backup pad and heat dissipation fan, the perpendicular intermediate position that sets up at U -shaped support frame lower side panel up end of pillar, the mounting panel sets up the upper end department at the pillar, and the mounting panel is in horizontal position, the box is provided with chamber door, grid tray, ventilation hole, through wires hole, presss from both sides groove, slide, chimb, pull handle, basin and filter screen, side department on the board of the left and right sides of support frame is connected to the box, the side of chamber door passes through the left side limit department that terminal surface before the box is connected to the removable pin, the utility model discloses a mounting panel is used for installing the motor, the motor starts makes the pivot rotate, the pivot is rotated and is makeed the heat dissipation fan rotate to equipment to in the box dispels the heat, the box is convenient for open by the chamber door, observes equipment, the basin is used for saving the rainwater to absorb the heat that the sun caused the box to heat up.