According to Baidu Encyclopedia, silkworm chrysalis in Northeast China usually refers to tussah chrysalis, which is a kind of silkworm. Silkworm is an insect of Lepidoptera, which goes through four stages: egg, larva, pupa and adult. Silkworm pupa is the body of silkworm in pupal stage. Silkworm pupa is rich in protein, fat, vitamins, minerals and other nutrients, with high nutritional value.

Northeast China is one of the main producing areas of tussah in China, and tussah pupa is one of the specialty foods in Northeast China. Common methods are frying, frying and baking.