Abstract: This article focuses on the design of H-shaped concrete tower crane foundation on existing structural elevator shafts. Firstly, the tower crane foundation is divided into several independent members and classical mechanical formulas are used for pen calculation. Then, YJK and SAP2000 software are used to establish mechanical models under various stress conditions and compared with pen calculation results. The results indicate that splitting the main beam of the H-shaped tower crane as a separate component and using classical mechanics calculations can meet the safety requirements of the tower crane foundation. The construction measures of the entire tower crane foundation scheme are reasonable and the mechanical model is a universal model, which can be used as a reference for front-line technical personnel on the construction site