A reminding device for the
shelf life of the food in a refrigerator comprises a processor, an
input device, a displayer and an alerter, wherein the processor, the
input device, the displayer and the alerter are arranged on the refrigerator, and the
input device, the displayer and the alerter are all connected with the processor. A reminding method of the reminding device comprises the steps that (1) food information is input through a
barcode scanner or a
handwriting touch screen; (2) the processor sets
shelf life reminding time in sequence according to the food information obtained from the input device and the set information of a user; (3) when the set
shelf life reminding time arrives, the
system will give out voice prompts at fixed moments every day or at the moment when the user opens the door of the refrigerator, and visual prompting signals are given out constantly at the rest of moments through the
flicker of an
LED lamp to enhance prompting effects. The reminding device and the reminding method thereof for the shelf life of the food in the refrigerator can effectively lower the harm caused by the expiration of the food, and have the advantages of being simple in structure, intelligent and strong in practicality.