Fengyun 4A(FY-4A), the R&D mission for Chinese second-generation geostationary meteorological satellite series was successfully launched at 00:11 BST on December 14，2016 at Xichang Satellite Launch Center, southwest China's Sichuan Province. From FY-4B, Chinese second-generation geostationary meteorological will be operational. To satisfy CMA weather forecast and service requirement toward 2020, the Advanced Geosynchronous Radiation Imager (AGRI) is one of the most important payload onboard the Chinese second-generation geostationary meteorological satellite. The AGRI will provide a significant advancement over the current FY-2 VISSR such as more spectral channels, faster imaging and higher spatial resolution. In this paper, the FY-4 working mode, channel setting and potential application are discussed. As FY-4A is under one year post launch test, which will end by December 2017, some test images of FY-4A are presented.