This paper proposes a simultaneous wireless power and data transfer (SWPDT) method for high-power applications. Data and power are transferred via the same coupler. Double-side LCC compensation topology is adopted for power transfer, and constant-current output topology is adopted in the data transmitting circuit to greatly simplify the design. The parameter design of the power transfer channel and data transmission channel is no longer strictly restricted by each other, and only a small inductor and a compensation capacitor connected serially with the coupling coil are needed. The serial compensation capacitor is used to compensate for the inductance added to power transfer channel and depress the interference of the power carrier. Finally, the proposed method is verified by simulation.