Northeast China is one of the four main regions of saline-alkalized land of our country,and the occurrence,distribution and evolution of the saline-alkalized soils is a comprehensive result of natural factors (such as peculiar climate,topography,hydro-geology etc.),and irrational agricultural and social activities of human.Distribution,formation and characteristics of the saline-alkalized land in Northeast China was systematically analyzed and agro-biological measures for management of saline-alkalized soil were illustrated,including cultivation of rice to wash down salts,cultivation practices,soil building practices,plantation of salt-tolerant plants and biological removal of alkali,etc.in the paper.At the end,several suggestions were made for agro-biological treatment of and future research on saline-alkalized land in Northeast China.