Abstract: Since the 21st century， the world has increasingly become a complex of real world and virtual world due to the emergence and existence of the Internet. Man is a historical，objective and realistic existence. The way of man's existence mainly includes the way of life， the way of communication， the way of organization and the way of thinking. With the rapid advancement of network technology， the community of shared destiny in cyberspace has profoundly change many aspects of human economic， political and cultural life and so on， expanding and extending people's way of life， communication， organization and thinking， and profoundly transforming and reshaping people themselves. It must be noted that in the community of shared destiny in cyberspace， the expansion of human existence should not only emphasize the individuation of human existence， but also emphasize the integration of human existence.

Key words: cyberspace, community of shared destiny, mode of existence, mode of communication, mode of organization, mode of thinking