Temperature and humidity control method of cooking device, cooking device and storage medium

The invention relates to a temperature and humidity control method of a cooking device. The method comprises the following steps: S1, initializing a target temperature T0 and a target humidity A0; s2, a temperature threshold value T1 is obtained according to the temperature-saturation humidity relation table, T1 is smaller than T0, and T1 meets the condition that at the temperature T1, the corresponding saturation humidity value under the standard air pressure is equal to A0; s3, after cooking work is started, the interior of a cooking cavity of the cooking device is controlled to be heated until the temperature of the cooking cavity reaches T1, meanwhile, the cooking cavity is controlled to be humidified, and humidification is stopped until the humidity in the cooking cavity is equal to a saturation humidity value A0 corresponding to the temperature T1 and the standard air pressure; and S4, the cooking cavity is controlled to be continuously heated until the target temperature T0 is reached. According to the