Nie Juan, researcher of the National Disaster Reduction Center of China’s Ministry of Emergency Management, has been long engaged in disaster risk management and spatial technology research for disaster reduction. She has successively been involved in the national assessment and risk monitoring and early warning of major disasters such as the early 2008 low temperature, freezing rain and snow storm in southern China, the May 12 Wenchuan earthquake of 2008, the 2020 Yangtze River Basin floods, and the 2021 Henan floods. She has presided over or participated in more than 20 major engineering and scientific research projects of national and international cooperation. As an important participant, Nie founded and built the national comprehensive disaster monitoring and evaluation system and business system based on remote sensing, gradually formed the technical framework, methodologies and specifications for remote sensing evaluation of major natural disasters, and proposed and established the damage assessment methodology for major natural disasters based on the Comprehensive Disaster Damage Index. She compiled an atlas of monitoring and evaluation of major natural disaster and contributed to three published monographs and two national standards. She obtained three invention patents, and published over 20 academic papers in academic journals of importance at home and abroad. Nie has own the Gold Award for Excellent Chinese Geographic Information Projects, the second prize of Geographic Information Technology Progress Award, and the first prize of Innovative Science and Technology Achievement Award of the Ministry of Civil Affairs, as well as the Third-Grade Merit once.