Abstract: Modern technologys deviation from and returning to the life world is a dialectical process of historical development. The term “life world” does not mean denying modern technology; on the contrary， it leads modern technology to the true world of human nature， facing up to the problems and challenges in the process of social development. The returning path of modern technology to the life world in China should be based on the national conditions， starting from opening up the routes of social emancipation， laying solid material foundations and paying attention to public demands. For one thing， modern technology should improve the inherent quality of public life; for another， the general public should retrodict the routes and directions of technological innovation， seek the innovative source and significance of modern technology and follow the development lines of ecotechnology-based ecological civilization by resorting to the practical rationality of “technological use” in the life world.

Key words: life world, modern technology, practical rationality