A knee module impact test stand includes an upper slide rail bogie, a guide rail supporting device, a hip H point device for connecting a dummy thigh, and a horizontal slide rail; the upper slide railbogie is installed on the guide rail supporting device, a damper is installed on the front end of the guide rail supporting device, the hip H point device is slidingly installed on the upper slide rail bogie, and an H point limiter is disposed on the upper slide rail bogie; the horizontal slide rail is disposed on the front end of the guide rail supporting device extending along a longitudinal direction of the guide rail supporting device, the horizontal slide rail and the guide rail supporting device constitute a complete slide rail used for guiding a movement trajectory of legs of a dummy,the horizontal slide rail is mounted on a height adjustment device, and an ankle stop block is disposed on the horizontal slide rail; and the height adjustment device comprises a vertical support adjustment device and a connection block, and the vertical support adjustment device is mounted on the lower part of the guide rail supporting device. The knee module impact test stand can restore a process of the legs of the dummy bumping an instrument panel during collision of actual vehicles, thereby verifying the bumping protection performance of the instrument panel on knees.