Abstract: As an important maritime transportation hub and strategic channel, understanding the surrounding geological environment of Bab-el-Mandeb is crucial for China's economic development and escort safety.Using the high resolution images of “GF-1” and “GF-2” satellites independently developed by China, through the combination of human-computer interactive interpretation and intelligent extraction, a lot of geological survey data can be obtained.The decoded basic geology, hydrogeology, coastline, intertidal zone and other important information provide necessary data support for the construction of China's support base in Djibouti, the Red Sea escort action and the supply of Djibouti Port.