It is one of the important ways for ensuring food security and promoting sustainable development of agriculture to enhance the agricultural efficient use of saline-alkali land. Based on the ecological suitability and social-economic activity goals, the agricultural sustainable utilization of saline-alkali land is through the progress and development of agricultural science and technology to obtain the maintenance and improvement of saline-alkali land agricultural productivity. Through the review of the research progresses on saline-alkali land’s agricultural use, it was found that relevant technical model had been experienced a great progress but survey and monitoring system of saline-alkali land resources was lacked, basic theory was insufficient and management system was imperfect. The paper inquired into the evaluation connotation of saline-alkali land agricultural sustainable use and established the respective evaluation technical system and thoughts in view of technology sustainability, improvement model sustainability and management decision-making sustainability. It is of significant for promoting saline-alkali land agricultural sustainable use to carry out scientific assessment of saline- alkali land agricultural sustainable use, establish technology and management support system of saline-alkali land agricultural sustainable use.