Control method of refrigerator

The invention provides a control method of a refrigerator. The control method comprises the steps that food materials are irradiated, and the distances from multiple points on the surfaces of the food materials to a preset plane are obtained; and determining the freshness of the food material according to the distances from the plurality of points on the surface of the food material to the preset plane. According to the control method, the judgment result is accurate, the problem that in the prior art, a smell sensor is adopted for detecting the freshness of the food materials, detection is not accurate can be solved, result distortion is avoided, and then waste caused by the fact that a user has to discard the food materials due to dehydration or rotting of the food materials can be avoided. 本发明提供了一种冰箱的控制方法，包括对食材进行照射并得到食材的表面的多个点至预设平面的距离。根据食材的表面的多个点至预设平面的距离确定食材的新鲜程度。本发明的控制方法判断结果准确，可以避免现有技术中采用气味传感器检测食材的新鲜度存在的检测不准确的问题，避免结果失真，进而可以避免由于食材脱水或腐烂，用户不得不丢弃这些食材，造成浪费。