The utility model provides an EDR acceleration simulation device of an automobile event data recording system. The EDR acceleration simulation device comprises a protective cover, a front-end supporting frame and a rear-end supporting frame are arranged in the protective cover in a bilateral symmetry mode, a magnetic shaft is fixedly arranged between the front-end supporting frame and the rear-endsupporting frame, a linear motor is arranged on the magnetic shaft, a workbench is fixedly arranged on the linear motor, and a to-be-tested EDR controller and an external acceleration sensor are arranged on the workbench. The lower end of the protective cover is connected with a control cabinet which is provided with an industrial personal computer and a driver. According to the EDR accelerationsimulation device of the automobile event data recording system, a motor driving mode is adopted, and the protection device is arranged, so that the requirements of low use cost, high safety performance and low generated target acceleration error are met.