Abstract: Corn is the largest grain crop in Heilongjiang Province and the largest straw-producing crop.Under the guidance of the concept of green ecological sustainable development, the pressure of corn stalk burning is huge. In order to change this situation,we have done four tillage mechanization technology model experiments,such as the corn stalk was smashed and covered to the field, it was smashed and buried to the field, it was smashed and mixed to the field,and it was moved away from the field.Compared with those experiments,we found the mechanization technology model of corn stalk smashing to the field is better than the model of the corn stalk moving away from the field,In addition, the mechanization technology model of the corn stalk samshing,burying to the field has the best effect in straw decomposing, soil temperature, organic matter content, and crop growth,but the cost of mechanical operation is the highest. The model of the corn stalks smashing and covering to the field with mechanized farming technology has the best soil moisture content and the highest comprehensive benefits.The comprehensive utilization of corn stalk should be mainly smashed to the field,supplemented by moving away from the field. so it is of the great significance to realize producting agricultural output from the soil", protecting the black soil resources, reducing environmental pollution.