Abstract: According to the status that deep and large shaft sinking platform( shaft depth and diameter was separetely not more then 1 200 and 8 m) was main task of mine construction projects in the future,but the relevant research to the structure selection and mechanical properties of deep and large shaft sinking platform were very li mited,layout of the deep and large shaft sinking platform( sinking depth 1 200 m,shaft diameter 6 m to 12 m) were systematically analyzed by considering the latest change S in shaft construction technology and equipment. Also,series of numerical calculations were carried out to check the mechanical characteristics of the sinking platform by SAP2000 finite simulation software. Based on the above results, steel selection of the deep and large shaft sinking platform were obtained. It could provide reference stand ard of structure selection satisfied to sinking platform beam-column of shaft with sinking depth 1 200 m,shaft diameter6 m to 12 m,and provide the reference for the design of deep and large shaft sinking platform.