Based on the analysis of the status of water-saving and existing problems in Jiangxi province，the application of low-pressure pipeline irrigation in Shimen irrigation area of Ruichang was used as design example which is combined with the characteristics of low-pressure pipe irrigation technique，comparing low pressure pipe irrigation engineering with channel irrigation shows the advantages of low pressure pipe irrigation engineering and adaptability，the application of low-pressure pipeline irrigation technology could save irrigation water，invest，maintenance and income.To complete the 13th Five-Year plan tasks on efficient water-saving irrigation in our province，pipeline irrigation is one of the important guarantee.