To provide a testing device for an automobile capable of simulating a phenomenon near to an actual traveling condition.

This testing device for the automobile 1 is an automobile testing device for testing the performance of the automobile as a testing object X. The testing device for the automobile 1 is constituted to include a load applying means 3 having a rotary part 31, and for rotating the rotary part 31 to impart a rotational load to wheels of the testing object X arranged on the rotary part 31, and an vibration means 2 having a vibration generating part 21 for generating vibration, and for transmitting the vibration of the vibration generating part 21 to the testing object X via the rotary part 31. The testing device for the automobile 1 transmits the input vibration while imparting the rotational load to the wheels of the testing object X.