The paper introduced the current situation and methods of straw returning for wheat/corn double cropping area in north China.A field survey, literature review and expert interview approach were applied for analyzing some problems,including the relatively large amount of maize straw returning to field,bad crushing quality,uneven mixing of soil and straw,plant diseases and pests,severe damage of mechanical parts.And some other preventive measures,such as returning straw to field in time,improving the quality of smash,manufacturing soil to seed,scientific rotation of soil,prevention of plant diseases and insect pests,and promotion of government subsidy，were also pointed out.Some measures were put forward to improve the technology of returning wheat and corn stalks into the soil in the future.It also could provide reference for mechanism research and extensive application of returning wheat and corn stalks into the soil in north China.