The utility model relates to a bay level equipment of transformer substation control by temperature change type heat abstractor, including the bay level equipment of transformer substation screen cabinet, air outlet fan of upper portion installation at bay level equipment screen cabinet body back door, air inlet fan of lower part installation at cabinet body back door, the upper portion at cabinet body back door make one with the corresponding air outlet in air outlet fan position, physically make an air intake corresponding with air inlet fan position in the lower part at back door at the cabinet, this air intake constitutes by many the ventilation slot that set up side by side from top to bottom with the air outlet, and between air inlet fan and the air intake, all be provided with the filtration web between air outlet fan and the air outlet. This device utilizes opening and closing of thermostat controller fan to the air flows in accelerating the cabinet, and in time discharged heat has guaranteed transformer station equipment's normal operating, has eliminated the potential safety hazard, passes to the backstage through the RS485 communication with information simultaneously, with real time monitoring, has further improved the fail safe nature of power equipment operation.