Abstract: This paper discussed the characters of lignite and problems in reserves and utilization.The analysis shows that developing lignite upgrading technology is very important for energy-saving and reducing emission as well as developing low carbon economy.Aiming at developing condition and subsistent problem of lignite upgrading technology both in home and abroad,this paper put up lignite Upgrading Technics witch integrated the Dry-Cleaning,Drying and Briquetting processes,and analyzed its technology flow、main study content and some excellence which other technologies don’t have.This paper put up upgrading technology parameter calculation and technology equipment investment budget for disposal capacity 50t/h lignite system,and discussed the technology wider market developing space.