Abstract: Great attention has been paid to the reclamation and agricultural utilization of saline-alkali land in China. According to the available information about saline-alkaline land resources, the amount of salt-affected farmland increased while the superior salt-affected wasteland resources for reclamation decreased. However, the available data and information were too old and rough to guide the utilization of saline-alkali land at present. As a part of the third nationwide soil condition census, the general investigation is highly suggested for the systematic and sustainable management of saline-alkali land, with the emphasis on breeding saline-alkali tolerant crops and varieties.