The utility model discloses an electric power cabinet with protection against tide and cooling effect, including electric power cabinet body, there are baffle and refrigeration water tank in the inside of electric power cabinet body fixed mounting respectively, and water cargo position in the below of baffle of refrigerating, the last fixed surface of water tank installs the fan, and the bottom of baffle is provided with heat transfer device, heat transfer device includes mounting bracket and three heat exchange tubes, the heat exchange tube passes through dead lever fixed mounting in the mounting bracket, and the both ends of every heat exchange tube all connect through communication pipeline, and the connection pipe fitting of heat exchange tube one end passes through the delivery pipe and is connected with the delivery port of the water tank that freezes. This electric power cabinet simple structure dampproofing and the cooling effect, reasonable in design can reach the effectual inside temperature that reduces the electric power cabinet body, avoids high temperature to influence cabinet inner electronic component and normally works, can also make cabinet intracorporal environment keep dry through cold wind, and the electronic component for internal of electric power cabinet has created good operational environment effectively.