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Objective FY-3D/MERSI-II global fire products can be used for real-time monitoring to forest and grassland fires, straw burning and other biomass burning around worldwide. This paper introduces FY-3D/MERSI-II global fire products, including the method, product contents and applications. Method The method of fire spot discerning considered several conditions, like cloud contamination, cloud edge, and thin cloud influences, etc. The sub-pixel size evaluation uses single channel with fire temperature set as 750K. The fire intensity level is established by FRP, which calculated using sub-pixel size and fire temperature. Based on the results of automatic global fire spot discerning, the daily global fire products with spatial resolution of 0.01 degree are generated, and the global monthly fire spot density maps of 0.25*0.25 degree grid points are produced monthly. Result To verify the accuracy of automatic fire spot discerning in FY-3D/MERSI-II global fire monitoring, we select the results in several typical area, including Northeast China, Russian Far East, South America and South-central Africa from May to June 2018, and compared with the results by using interactive fire spot discerning method as the truth. The statistical analysis results shows the accuracy of the automatic fire monitoring algorithm reaches more than 95%,The daily FY-3D/MERSI-II global fire products contents including fire location, sub-pixel size （in hectare） and temperature, fire intensity level, FRP. Two application examples are introduced. One is for monitoring the huge wide fire happened in California, US in 2018, and another is for analyzing the temporal and spatial changing features of wide fire around Arctic Pole circle in summer of 2018. Conclusion: FY-3 global fire spot discerning algorithm takes into account a variety of weather conditions and underlying conditions, which can be better adapted to the monitoring of fire in different regions of the world. The results show that the algorithm has good accuracy. The rich detection information and global observation ability of Fengyun-3 Meteorological Satellite have reached the international advanced level of forest and grassland fire monitoring. Fengyun-3 global fire product can support for disaster prevention and mitigation, climate change, ecological environment protection in global wide. In the future, we will further develop methods such as burned area assessment and estimation of biomass carbon emissions, prediction of smoke impact, forest and grassland fire risk warning, etc. Fengyun Meteorological Satellite will play a greater role in global wildfire monitoring, early warning and prediction services.