According to the construction characteristics of Tianjin modern city structure, the design of steel tower suspension support is an important premise to ensure the construction safety. The design of embedded parts and joints is particularly important in the erection of tower crane support. In this paper, the finite element analysis of the embedded node and the concrete punching check calculation are carried out. Due to the small thickness of the core tube wall, the concrete punching resistance cannot meet the requirements. In order to make the strength of the concrete and the embedded part meet the requirements, prestressed tensile reinforcement is adopted to ensure the safety of the steel structure support frame in the construction process.