Abstract: The development of digital media technology accelerates the process of the integration of new and old media, making the construction of digital platforms in the “central, provincial, municipal, and county-level” four media organizations have achieved outstanding results, among which the county integration media center is becoming the “last kilometer” to open up the grassroots public opinion communication. With the support of digital technology, the county-level financial media center has been innovating in the aspects of system mechanism, content production, platform building and technological innovation, and has explored many development models and experience methods. It constantly uses new technologies, new platforms, and new carriers to serve the better life of the people and the social governance at the grassroots level, thus improving the publicity effect of the city brand. A strong guarantee for expanding the communication power and influence of new mainstream media.