Based on the data of 126 typical profiles of sodasaline soils in Song-Nen Plain of Northeast China, numerical classification for soda-saline soils using analytical method of synthetic numerical values was conducted.Different quantitative indexes were proposed for identification of types of salinization of soils and degree of salinization and alkalization the soils.Biological experiment showed that this method for the lower category classification of soda-saline soils are practicable.