WeChat subscription number in Guizhou Provincial State Meteorological Department opened as the main research object, with the spread of WeChat index WCI (dingta index) as the main research target, using factor analysis method to extract the key factors affecting the WeChat public number spread index, combined with the local per capita GDP, the number of mobile phone users and other data, for correlation test. To conclude, the level of WCI and GDP correlation does not exist, the main influencing factors of WCI for local mobile phone user base, the maximum number of points like four factors such as the number, the maximum number of reading, reading the headlines. And make suggestions on the development of new meteorological media services, so as to provide more practical experience for the reform and innovation of meteorological services.