It elaborates the geological features of progressive shallow landslides combining with the specific project of Yizhang Avenue, and sums up the characteristics of flexible supporting, i.e., rapid-construction, economic, security, environment-friendly by comparison and analysis between flexible supporting and traditional methods of treatment for landslides. According to the specific situation of this project, it introduces the point of flexible supporting design as well as its effects, and verifies the feasibility and superiority of flexible supporting technology.