The linguistic philosophy (Oxford School) is a trend in analytical philosophy, critical about the claims of formal logic. Its followers want to investigate problems using an analysis of ordinary language. Peter F. Strawson is one of the most prominent representatives of this line of thoughts. He is also a philosopher who has done a lot toward a rehabilitation of metaphysics in British philosophy. In my paper I present an analysis of Strawson’s metaphilosophical ideas and I offer a critical discussion of Karl R. Popper’s attitude to linguistic philosophy.