The invention discloses a multi-source remote sensing satellite image geometry and semantics integrated processing method and system. The method is different from the traditional scheme of performing geometric precision correction on remote sensing images first, and then performing semantic segmentation and information extraction, and proposes a method that includes semantic information Extraction, automatic geometric fine correction assisted by semantic information, and semantic information optimization are three steps. Firstly, from the standard scene images, the cloud, water surface, ice and snow, cloud shadows, artificial buildings and other terrain information that have a great influence on the geometric precision correction are preliminarily extracted, and then with the assistance of these information, interference is eliminated to realize fully automatic remote sensing images. Geometric precision correction, uniform light and color, seamless mosaic, image synthesis and other processing, and finally in the high-precision multi-source composite image, extract richer semantic information and target information, and obtain ultra-large-scale multi-source composite image and its corresponding semantics Maps and thematic maps of land types.