Organic fertilizer is widely used because it carrys a full range of nutrients and is rich in biologically active substances and helpful for improving soil fertility and crop quality.However,the mechanism of organic fertilizer on farmland soil is complex.And the impact on agricultural soils in greenhouse gases can not be ignored.It affects agricultural soil emissions of greenhouse gases by increasing soil organic C,changing the soil C/N and soil respiration rate,and increasing microbial activity.Combined domestic and abroad research progress,the paper briefly described the effect factors and characteristics of organic fertilizer on farmland greenhouse gas emissions.The key research direction of the field in the future was proposed in order to reveal the mechanism of organic fertilizer on greenhouse gas fluxes,and provide a reference control greenhouse gas emissions.