In this paper, "the interaction mode of the existing acquaintance relationship chain is not good" will be demonstrated, and at the same time, a new interaction mode will be proposed. It is suitable for socializing with acquaintances/strangers and some strong and weak relationships. In this way, multi-party products will have the opportunity to gain the precipitation of part of the acquaintance relationship chain. WeChat's acquaintance relationship chain and the status quo of friend interaction More than 50% of users have more than 100 friends in total; and the number of users' friends will only increase. More than 60% of users actually communicate with less than 20 friends every week. And among these 20 friends' exchanges, 40% are dispensable exchanges, 35% are exchanges that users don't want, and about 25% are exchanges that users need. This is still an average, and the number of effective social interactions a regular user has in a week is about 3-5. And the more friends there are , the higher the social cost for users to find or be found, such as: target search, character recall, time cost, energy consumption, willingness to refuse; some friends Phone Number List are users who want to chat , but won't really talk. (such as some former colleagues, classmates, friends, etc.) In general, users have socialized many times, but most of them are optional, and some of them are not needed, and only a small part of the socialization is really needed. WeChat’s existing social process From the flow chart , it can be seen that in each process, users may have new possibilities, which are often negative effects that are not conducive to interaction. This is because people's cognitive ability, mentality, emotions and other comprehensive factors will produce extremely complex changes in human nature when they interact with people and content is the core. However, the existing network social history life is still very short, very imperfect, and the evolutionary length is not high.