Abstract: With the 18th College Students' Structural Design Competition in Zhejiang Province of the title “Transmission Tower Structure Design and Model Making” as the background, this paper studies the force and structure form selection of transmission tower structure under the broken power load. In the scheme stage, the advantages and disadvantages of different structures are analyzed; and the concept of shock absorption and isolation is integrated for design: the head and the main body are detached and the circular pressure groove orbit is cleverly set as the vibration isolation device, energy dissipation and vibration reduction by rotating the head along the track for friction, this is innovative. Through the experimental verification, combined with analytical calculation and SAP2000 software calculation analysis, the conclusion that the circular orbit vibration reduction and isolation device can effectively reduce the dynamic effect of the structure and improve the safety reserve of the main structure. The purpose is to provide practical and theoretical experience guidance for similar competition models and related practical projects.