The invention discloses a ventilation door regulating mechanism, which comprises a temperature sensor, a capillary tube, a metallic diaphragm and a regulating mechanism, wherein the temperature sensoris arranged in the oven equipment and is used for detecting the temperature of the oven equipment; one end of the capillary tube is connected to the temperature sensor, wherein the capillary tube isfilled with liquid, and the liquid is subjected to thermal expansion; the metallic diaphragm is provided with an expansion side, and an inner cavity is kept in the metallic diaphragm; the inner cavitycommunicates with the other end of the capillary tube, so that the expansion side gets displaced in accordance with the degree of being heated of the liquid in the capillary tube; the regulating mechanism is arranged on an air inlet of the oven equipment; and the air intake amount of the air inlet of the oven equipment is controlled in accordance with the displacement change of the expansion side. The invention also discloses the oven equipment. According to the mode, the air intake amount of the air inlet of the oven equipment can be controlled, so that a heating degree required by foods canbe controlled, and the high-efficiency utilization of fuel can be achieved.