As the oilfield with only 50 million-ton reserves that has been overall developed of SINOPEC during the 12th Five-Year Plan，Chunfeng Oilfield has established a strategic goal of building a million-ton oil production base within five years at the very beginning of its development. In view of the lack of effective reservoir description，development mode，engineering technology，management system，and other difficult problems in the efficient development of thin-shallow superheavy oil reservoir，targeted systemic researches were conducted centered on“three-new and three-high”mode. Eventually seven innovative key technologies were developed，technologies of two meters thin-shallow detailed reservoir prediction and high-efficiency thermal compound oil recovery have been developed to solve the problem of efficient production. Horizontal well sand-control plug-drilling-free integrated technology of drilling and completion，as well as horizontal pump integrated technology of steam injection and oil production were proposed to solve the problem of effective development.High-dryness circulating fluidized-bed environmental protection boiler，as well as produced water low-temperature multi·effect mechanical compression evaporation technology were improved to realize green and low-carbon development. Intelligent oilfield efficient management operation system was constructed to improve labor productivity and to reduce the development cost. Chunfeng Oilfield developed nearly 50 million tons of reserves and has established a stable oil production of million tons for four years from 2015 to 2018. The capacity construction investment and full cost per unit reduced by about one-third. While producing great economic and social benefits，these key technologies have enriched the theory and technology of heavy oil reservoir development. They have been applied in Xinjiang，Henan，East Shengli and other similar oilfields in China，and support the scale profitable development of low grade super-heavy oil reservoir.