The utility model relates to the field of car bodies, and provides a hook device for a car. When not in use, the hook device for the car is free from occupying the space in the car. The visual field of a driver can not be blocked when an object is hung on the hook device. The hook device for the car comprises a hook, a car top plate, a rotary shaft, a rotary plate, a fixing plate and an elastic clamping plate. A through hole is formed in the car top plate. The fixing plate and the elastic clamping plate are arranged on two adjacent sides of the through hole and respectively fixedly connected with the upper end face of the car top plate. One end of the rotary plate is connected with the fixing plate through the rotary shaft in a pivot mode, and the other end of the rotary plate is fixedly connected with the hook. When the hook device for the car is not in use, the hook and the rotary plate are both arranged on the upper side of the through hole, and the hook is clamped by the elastic clamping plate. When not in use, the hook device for the car does not occupy the space in the car, and the visual field of the driver can not be blocked when the object is hung on the hook device.