Refrigerator control method and device and refrigerator

The invention relates to the technical field of refrigerators, and provides a refrigerator control method and device and a refrigerator. In response to the first input, under the conditions that the temperature of a freezing chamber of the refrigerator is larger than a first target temperature, the temperature of a refrigerating chamber of the refrigerator is outside a first target range, and the temperature of the freezing chamber is within a second target range, a compressor of the refrigerator is controlled to operate, and a refrigerating fan of the refrigerator is controlled to operate at a first duty ratio, controlling a freezing fan of the refrigerator to operate at a second duty ratio; wherein the first duty ratio is greater than the second duty ratio. According to the method, on the basis of user input, a freezing chamber is controlled to be switched to a refrigeration mode, the capacity of a refrigeration area of the refrigerator is increased, user requirements are met, the temperature of the refrige