Abstract: In order to improve soil barriers in continuous cropping,many active substances were applied to continuous cropping soil,among which biochar has achieved a series of research results in improving soil fertility,productivity,and structure due to its rich pore structure,high carbon content,stable physicochemical properties,and large specific surface area.This article reviewd the concept and characteristics of biochar,the causes of continuous cropping obstacles,and the effects of biochar on the physical and chemical properties of continuous cropping soil and microorganisms.It summarized the effectiveness of biochar application in breaking soil continuous cropping obstacles,and prospected for research on the improvement of soil physical and chemical properties using biochar in the future.