In response to the low efficiency and low data transmission rate of long-distanc simultaneous wireless power and data transmission caused by the small coupling coefficient, this paper designs the coupling mechanism and topological structure parameters. Firstly, the output voltage gain and information transmission characteristics are analyzed, and the LCC-LCCC compensation topology is designed to reduce the current and improve system efficiency. Secondly, the mutual inductance is increased by using laminated coils and magnetic cores, and the voltage stress of the coils is reduced by using capacitive segmentation compensation. Then, the information transmission rate and the amplitude of information reception are increased by reducing the number of information circuits and the transient time of the information circuit. Finally, the system achieves simultaneous wireless transmission of 120 W and 4.8 kbps of power and data at a transmission distance of 1 m and a distance-to-diameter ratio of 2, with a coupling mechanism transmission efficiency of 78%.