A method of preparing fishery -ies product. In the method, fish slice after being slaughtered under stiff preceding state, it goes to allowance for bark from fillet under stiff preceding state, the fillet of no skin are arranged in pre- salting process under stiff preceding state, and during so that it is kept pre- salt marsh there, fillet are removed from pre- salting process, fillet are arranged in its transportation and packing, it is subjected to second of salting process in the packaging, and is retained in fillet in transportation and packing at least one day.
