Control method of refrigerator

The control method of the refrigerator comprises the steps that when refrigeration of a refrigeration chamber is finished, the temperature detected by a defrosting sensor is obtained, and a first temperature value is obtained; whether a defrosting program of the refrigerator is started or not is judged according to the first temperature value. Whether the defrosting program of the refrigerator is started or not is judged according to the first temperature value reflecting the surface temperature of the evaporator, hardware does not need to be changed, defrosting control upgrading of an existing refrigerator is achieved, the frost amount of the evaporator can be known by monitoring the temperature change condition, then whether defrosting is needed or not is judged, and the situation that the defrosting program is started or not due to high environment temperature and much water vapor in a refrigerating chamber is avoided. And the refrigerator cannot recognize the frost amount and does not defrost, so that the