Power distribution cabinet with good heat dissipation effect

The utility model discloses a power distribution cabinet with a good heat dissipation effect, which comprises a cabinet body, a cabinet door is connected to one side of the front part of the cabinet body through a hinge, a groove is formed in the front part of the upper part of the cabinet body, a rain shielding structure is arranged in the groove, and the rain shielding structure comprises a first fixing plate and a second fixing plate. According to the power distribution cabinet with the good heat dissipation effect, by arranging the rain shielding structure, when the power distribution cabinet needs to be maintained in rainy days, the second base is sleeved with the circular ring, the cabinet door is opened, the second base is matched with the spring, the first base is driven to move along with the cabinet door, and therefore the first fixing plate horizontally moves forwards; and the roller shutter is driven to extend forwards, so that the effect of shielding rainwater is achieved, the effect of protectin