The comprehensive utilization of saline-alkali land in China has made positive progress and has formed eight systems and more than 40 practical technologies. China currently has about 550 million mu of all kinds of available saline-alkali land resources, of which the total area of saline-alkali land with agricultural utilization prospects is 185 million mu. It is understood that at present, China has formed more than 40 practical technologies in eight systems, including soil salt discharge technology, soil bio-organic salt control technology and soil improvement technology, in the comprehensive utilization of saline-alkali land. In terms of varieties, more than 50 varieties of saline-alkali tolerant crops have been promoted in China. Through continuous treatment and transformation, the total area of saline-alkali land in China is decreasing, and the proportion of heavy saline-alkali land is decreasing year by year.