Dehumidification device of outdoor electric power cabinet

The invention discloses a dehumidification device of an outdoor electric power cabinet, which comprises an electric power cabinet body, an air outlet pipe and an air inlet pipe are respectively arranged on two sides of the top end of the electric power cabinet body, a mounting bin is arranged at the top end in the electric power cabinet body, and a reversing structure is arranged at the top end in the mounting bin. Therefore, the positions of the two flow guide structures are exchanged, the positions of the water absorption frames at the air inlet position and the air outlet position are changed, water in the water absorption frames at the air outlet position can be rapidly evaporated through hot airflow generated during heat dissipation, meanwhile, back flushing operation can be conducted on the filtering frame, and the filtering efficiency is improved. In addition, when external moisture is heavy, the opening piece is closed through the closing plate, then the circulating pump and the refrigerating machine