With the rapid development of aerospace technology, high-resolution remote sensing technology has been more and more widely used in disaster Reduction and Relief. On April 20th, 2013, a magnitude 7.0 earthquake occurred in Lushan County, Sichuan Province, which caused extensive damage on housing and road, and led to seismic secondary disasters such as mountain collapse and landslides. Based on the “ Reservoir” emergency platform, this paper obtained high-resolution satellite remote sensing images and aerial images in L us han County, Baosheng Town, and Taiping Town during the earthquake. The paper interpretated Images based on disaster characteristics, extracted and analyzed targets such as landslide bodies and roads, and monitored and assessed disaster conditions based on the results of extraction.