A Study on the Remote Sensing Information Extraction and Dynamic Monitoring Technology of Cultivated Land Use

China is a country with big population, and the per capita cultivated land area is very little. Besides, agricultural production is easy to be affected by many factors, such as climate, drought and flood, diseases and insect pests, so it poses a great pressure on food security. Remote sensing used for farmland crop classification, crop growth monitoring, crop yield, planting area of crops research has made a lot of progress. This provides a broad prospect for rapid and accurate acquisition of agricultural. Based on the author's learning and practical experience, this paper first analyzed the current situation of remote sensing information technology in China and abroad, and then put forward the remote sensing information extraction method of cultivated land use, and finally, the dynamic monitoring methods of cultivated land use remote sensing information was summarized.