Abstract: Saline-alkali soil improvement is of great significance at this stage of China's population growth and reduction of arable land. Saline-alkali soil in coastal area of Tianjin selected in this paper as an example, through analyzing its ecological indicators, the paper clarified constraints of saline-alkali soil improvement and summarized the traditional methods for improving saline-alkali soil and waste resource recovery, application of rapid improvement of fertilizer, soil fertility such as new improvement techniques. The paper recommended the strengthening of the study of saline-alkali soil irrigation management, salt water irrigation and efficient saline-alkali soil improver and the integrating of the establishment of saline-alkali soil water and salt forecasting, monitoring and evaluation and the cultivation of economic salt-tolerant plants according to ecological niche to improve the comprehensive management of coastal saline-alkali soil. The study in this paper was aimed at establishing saline-alkali soil in coastal area of Tianjin comprehensive management plans for sustainable.