Most of the insects on the ancient dining table have disappeared from the "recipes" of modern humans. But ant eggs, lice, silkworm chrysalis, locusts and so on. Still good for people. In foreign countries, insects are also common foods. Insect resources are rich, diverse, with strong reproductive ability and high nutritional value. It is proved that the protein dry weight of some insects is as high as 30.8 ~ 72.02%, and contains many amino acids and vitamins. We should study it, carry forward the fine tradition of China's ancient diet, and use insects as an ideal new food source to make greater contributions to human life.