Abstract: This paper systematicly analyzes the development history of La.Sa.Xing.reaervoirs which have been developed for 30 years and summarizes the main techniques for developing the three reservoirs with high effectiveness.They are to perfect and develop the production performance monitoring system,to improve and deepen reservoir studies,to adopt effective steps for adjusting and tapping the potential of the reservoirs,to increase the working recoverable reserves; to make reasonable use of reservoir energy,to increase production; and to make and adjust the technical limits in the different development phases of the reservoirs.