The article deals with the origin of ideological prerequisites of Puritanism as a trend in the Church of England which appeared in the course of Reformation. The author traces penetration of Reformation ideas to England from European continent before the beginning of King’s Reformation by Henry VIII (1509–1547) in 1534 and shows the beginnings of English religious emigration on the Continent from 1520s which was formed by Englishmen who were adherents of continental Reformed churches.