Fishing and sea-hunting were traditionally the main occupations of the Pomors of the Winter Coast of the White Sea. The article describes the system of fishing and sea-hunting prohibitions and injunctions. Unlike the other genres of fishing and sea-hunting folklore, the prohibitions and injunctions are widely spread nowadays because fishing and sea-hunting are of high-risk and dangerous kinds of work. These prescriptions trace their roots back to perception the sea as a threatening element, ʻalienʼ space. Their main role is to protect person from the ʻalienʼ space’s bad influence and to ensure the great success of his activity.