This paper designs a high-precision motion platform based on real-time Ethernet. On this platform, this paper provides a detailed analysis of the causes of platform errors and conducts simulation experiments on ZV shaping and ZVD shaping based on the X-axis and Y-axis using Simulink. The experimental results show that ZV shaping is sufficient for the x-axis direction and ZVD shaping is sufficient for the y-axis direction. Through experiments, input shaping parameters are obtained to shape the vibration errors expected to occur during platform motion. By optimizing the network card driver of the CNC system, the data transmission performance has been improved. Based on the improvement of data transmission performance, the transmission cycle of servo motor control instructions for the platform in the CNC system has been reduced, thereby improving the real-time performance of the control system. The experimental results show that the testing platform can achieve good positioning accuracy on both the x-axis and y-axis.