Abstract: An object of the present invention is to provide an automotive tool storage device which can prevent the occurrence of noise and damage due to a tool and is convenient in use of tools. According to the present invention, in the automotive tool storage device in which a spare tire is fixed to the car body by using a spare tire holder, a tool is fixed together with the spare tire by using a tool holder having a concave portion which is open downward at the lower part thereof, by positioning the tool in the concave portion of the tool holder, and by holding the tool between a wheel hub of the spare tire and the tool holder.