Manufacture method of instant fish skin food rich in micromolecular collagen

The invention discloses a manufacture method of instant fish skin food rich in micromolecular collagen. According to the manufacture method, fresh fish skin is taken as a raw material; the fresh fish skin is cleaned and air-dried; the fish skin tissue is subjected to pressurization low-temperature airflow puffing treatment; the fish skin is subjected to low-temperature vacuum vibration; papain and calcium lactate are added into the fresh fish skin; the fresh fish skin is put into a sodium alginate solution to be a subjected to film formation and casing fixing; the fish skin is fished out, heated and subjected to solid vacuum enzymolysis; macromolecular proteins in the fish skin is subjected to enzymolysis to become micromolecular proteins; then the instant fish skin food with tenacity and fragility can be manufactured through high-temperature enzyme deactivation shaping, seasoning and drying. According to the manufacture method, the fish skin tissue is damaged through pressurization, low temperature, vacuum a