China's urban traffic is in a period of rapid construction.As an important traffic structure across rivers and roads,cast-in-place bridges have the advantages of fast construction speed,simple construction and good integrity,and have been widely used and can effectively meet the development needs of urban traffic.In order to solve the problem of removing the cast-in-place beam support in the restricted areas of the city,the relevant personnel propose to use small machines and tools to remove the cast-in-place beam support in the restricted areas.Taking the actual engineering as an example,this paper explains in detail the demolition method of the support and safety precautions,which provides a technical reference for similar engineering projects.