Cooking utensil, control method and control device thereof and readable storage medium

The invention provides a cooking utensil, a control method and device thereof and a readable storage medium, the cooking utensil comprises a body, the body comprises a cooking cavity, an air inlet and an air outlet, the air inlet and the air outlet are communicated with the cooking cavity, and the air outlet is lower than the air inlet; the steam assembly is arranged on the body and communicated with the air inlet; the ventilation assembly is arranged on the body and comprises at least one ventilation pipe which is communicated with the external environment and the cooking cavity; the switching mechanism is used for adjusting the opening area of at least one ventilation pipe; and the fan is used for feeding gas in the external environment into the cooking cavity through at least one ventilation pipe. Through cooperation of the steam assembly and the ventilation assembly, low-oxygen cooking can be carried out for a period of time through a low-Reynolds oxygen discharging technology in a certain cooking stage,