Chinese meteorological satellites-Fengyun (FY) include two kinds of satellites- geostationary (GEO, labled by odd number FY-2 and FY-4) and polar-orbiting (LEO, labeled by even number FY-1 and FY-3) series. FY series has almost thirty years history since the first LEO satellite FY-1A’s launch in 1988 and did not realize the operational running until FY-1C in 1997. The first GEO satellite FY-2A was launched in 1997 and FY-2C began to operationally work in 2005. The second generation LEO satellite FY-3A initiated the new era of Chinese FY satellites and carried 11 instruments covering the spectral range of UV, visible, IR and microwave. FY-3D, the fourth one of FY-3 series has significant improvement compared with the previous and will be launched in this September. Future plans include FY-3E/F/G/RM. In particular, the FY-3E (2018) is under development for the early morning orbit; FY-3RM (2020) is planned for measuring rainfall with Ku/Ka band active radar. The current FENG YUN geostationary constellation has four satellites in orbit: FY-2D/E/F/G. FY-2E(86.5°E) and FY-2G(105°E) routinely transmit S-VISSR imagery; FY-2F(112°E) takes sector scanning on request; CMA launched FY-4 in 2016, a three-axis stabilized platform to carry the Advanced Geo Radiation Imager, the Geo Interferometric Infrared Sounder, the Lightning Mapping Imager, and the Space Weather Monitor. FY-4 are being commissioned and greatly enhance the ability of Asia weather forecasting based on its new imager and sounder. Along with more and more Chinese meteorological satellites launched, the accuracy and quality of their measured data are paid attention by CMA. A great team who focus on the calibration and validation for the sensors of Fengyun Series satellites has been established step by step since 2000. CMA is the initiate member of Global Space-based Inter-calibration System (GSICS) and Fengyun sensors are incorporated into inter-comparison with the international reference sensors (AIRS/IASI/MODIS) in GSICS community. The sensors degradation monitoring using all kinds of earth stable targets (deserts, snow targets, DCC, dry Salt lakes) is also an important method of calibration stability and seasonal cycle. Above methods and others are involved in the integrated calibration and validation system for Fengyun series Satellites. FY satellite users spread all over the world across all aspects of society: public, academic, commercial, and government. The usage field involved the atmosphere, land and ocean science and operation. This paper will summarize the history and future of Fengyun satellite development.