The invention relates to a
temperature control method for an air-cooled refrigerator. The
temperature control method comprises the following specific steps that a shutdown temperature T<off> and a startup temperature T<on> of a compartment needing adjusting are determined, and a opening and closing period for periodical operation of a compartment
air door is set, wherein opening time of the
air door is t<on>1, and closing time of the
air door is t<off>1; the air door is opened for continuous
refrigeration on the compartment; a real-time temperature T of the compartment is detected; 4, the air door is closed,
refrigeration on the compartment is stopped, and a real-time temperature T of the compartment is detected; the air door is opened and closed according to the opening and closingperiod, wherein the opening time t<on> equals t<on>1, and the closing time t<off> equals t<off>1; the air door is periodically operated, and a real-time temperature T<c> of the compartment is detected, and if the T<c> is smaller than or equal to the T<off>, then the t<on>1 equals t<on> minus
Delta ti, the t<off>1 equals t<off>1, the step 4 is re-executed, and if the T<c> is larger than the T<off>,a step 8 is executed; if the T<c> is larger than or equal to T<on>, the t<on>1 equals t<on> plus the
Delta ti, the t<off>1 equals the t<off>, the step 2 is re-executed, and if the T<c> is smaller than the T<on>, the step 6 is re-executed. According to the method, by adjusting opening and closing frequency of the air door, a fluctuation range of an instantaneous temperature of the compartment is reduced, and the stability of a temperature in the air-cooled refrigerator is ensured.