Wireless power transfer technology provides an effective way for the problem of near-shore energy transmission of ships. This paper proposes a design method for high-power and high-efficiency wireless power transmission, and analyzes the loss of the wireless power transmission system with LCC-S topology. further analyze the relationship between the system efficiency and the primary inductance, select the parameters of the optimal efficiency point, design the coupling mechanism of the magnetic integration mode, and carry out the circuit simulation of the system. An experimental platform is built, and the experimental results verify the effectiveness of the proposed method. The output power of the system reaches 93kW and the efficiency reaches 96%.