This paper introduces the constellation of small satellites used for environmental and disaster monitoring and prediction.

Environmental and disaster monitoring and forecasting small satellite constellation is a remote sensing satellite constellation plan put forward by China to adapt to the new forms and requirements of environmental monitoring and disaster prevention and mitigation. According to the requirements of disasters and environmental protection, the "Small Satellite Constellation for Environment and Disaster Monitoring and Forecasting" consists of optical satellites and synthetic aperture radar satellites with medium and high spatial resolution, high temporal resolution, high spectral resolution and wide observation width, which can comprehensively utilize visible light, infrared and microwave remote sensing to meet the requirements of time, space and spectral resolution and all-weather and all-day observation for disaster and environmental monitoring and forecasting.