The invention provides an insulating rod testing apparatus which comprises a voltage machine and a hanging assembly. The hanging assembly is connected with the voltage machine and is provided with a hanging portion, and the hanging portion is used for fixing to-be-tested insulating rods so that the to-be-tested insulating rods can be suspended on the hanging assembly, and the voltage machine is electrically connected with the insulating rods by the hanging assembly. The insulating rod testing apparatus has the advantage that the problem of low insulating rod inspection efficiency in the prior art can be solved by the aid of the insulating rod testing apparatus.