2013年以来，中国微信进入稳定发展期。在研究中，我们对微信2013年的发展进行了量化研究，样本规模为1200人，涵盖北京、武汉、广州三大城市。作者基于量化研究，探索了微信用户的行为特征、用户结构、微信的传播优势、不足等。作者发现微信信息的可信度最高，微信、微博、网络新闻信息、报纸、广播、电视新闻的信任度分别为：63.4%、38.6%、21.7%、19.6%、14.6%、33.9%。作者最后展望了微信发展态势，并提出了发展对策。

WeChat is a mobile text and voice messaging communication service developed by Tencent in China, first released in January 2011. WeChat provides multimedia communication with text messaging, hold-to-talk voice messaging, broadcast (one-to-many) messaging, photo/video sharing, location sharing and contact information exchange. There are more than 600 million WeChat users in the world. The paper discusses  WeChat development from users’ amount, market scale and the function improvement. The author analyzes the characteristic, social functionand therisk of WeChat communication by quantitative research. The author finds  Chinese deem Wechat information is most credible. Credibility of Wechat, microblog,webnews,newspaper,broadcastandTV in China are respectively 63.4%、38.6%、21.7%、19.6%、14.6%、33.9%.