Abstract: At a time when social transformation and individualization are accelerating,loneliness among young people has become a group social phenomenon.From technology addiction to platform isolation,the formation of loneliness among young people is closely related to the use of social media.From an individual level,young people are happy to gain emotional comfort from online relationships,and with the company of daily technology,they eliminate the sequential perception of time.Subjects separated by technology shuttle between virtual and reality,creating situational technological addiction;from an environmental perspective,the digital platform constructed by algorithms alienates the form of communication in real society.The practical significance in the virtual space is hidden by the platform,and it is difficult for young people to conclude deep emotional bonds,which exacerbates atomization and interpersonal isolation,the platform being an invisible structural force that promotes loneliness.In the digital age,returning to embodied communication and strengthening the publicity of platforms should become the key ways to overcome loneliness among young people.On the one hand,we should encourage the young people who live in cyberspace for a long time to get out of the online life of isolation,fight against the "compulsory deprivation" of algorithms in the embodied communication in the real society,and promote the generation of practical significance.On the other hand,it is necessary to urge the digital platform to shape and strengthen the publicity,seek a balance between the internal tension between commercial interests and public welfare,reawaken the collective participation and public dialogue consciousness of the youth group,and create a harmonious and prosperous social atmosphere in the value guidance of the platform.

Key words: loneliness, social media, youth, use of media, mediation, publicity