Abstract: As one of the commonly used gear finishing processes, the internal gearing power honing process requires a special diamond dressing wheel corresponding to the workpiece to be customized when the workpiece gear is reshaped, which makes the process less versatile and the processing cost is high. This paper proposes a topological modification method for internal gearing power honing, which realizes arbitrary topological modification of the tooth surface of workpiece gears with standard honing wheels. The mathematical model of topological modification tooth surface of internal gearing power honing is established, and the mapping relationship between the standard honing wheel and the workpiece gear is obtained, and the additional motion of the A-axis and X-axis of the machine tool motion during topology modification is expressed by a high-order polynomial together with the electronic gearbox, the effect of the variation of the motion parameters in the polynomial on the machining tooth surface is expressed by the sensitivity matrix, with the modified tooth surface as the goal, the sensitivity coefficient in the sensitivity matrix as the gradient, the dynamic programming algorithm is used to solve the motion parameters, and the modified workpiece tooth surface is obtained. The simulation results show that the method can realize the topological modification of the tooth surface through multi-axis linkage, the modification error is small, the cost is greatly reduced, and the method is universal.