Abstract: Straw returning is an important way for fertilizing soil and solving the environmental problems produced by combustion straw in field.Research situation on way,time,amount,decomposition characteristics,carbon and nitrogen ratio of straw returning were introduced in this paper.Effect of straw returning on soil physical properties,soil nutrient,soil microbial,crop growth and yield were summarized.This paper emphasized research progress of straw returning on saline soils.The future research prospects of straw returning technology were advanced.This paper presents,under the existing soil and climate conditions in Songnen Plain,Straw returning need to form a complete set of reasonable improvement technology,combined with other physical,chemical and biological measures.By adjusting measures to local conditions,better effect can be achieved.