This paper analyzes and evaluates the motor vector control model of ARM platform, and makes up the blank of the evaluation in current servo control system.The analysis of the vector control model for motor and the environment of software and hardware need to realize the model based on ARM, which lays in the foundation of the analysis of vector control for motor based on ARM and performance evaluation.We use one method by idle task computing CPU load, and use this method to compute CPU load for performance evaluation experiments.Applications of vector control strategies under different conditions are analyzed.It has a guiding significance for vector control strategies choose based on ARM.