A heating test apparatus, according to one embodiment of the present invention, for testing the performance of a sample valve that opens when a predetermined temperature is reached comprises: an explosion-proof chamber having an explosion-proof compartment, which is a space opened or closed through an explosion-proof door, formed therein; a sample-holding module, which is provided in the explosion-proof compartment, holds the sample valve in the air, and supplies gas of a predetermined pressure to the sample valve; a bench top module, which is provided in the explosion-proof compartment and moves a test box having a heating furnace therein; and a control unit for controlling the bench top module on the basis of the position of the sample valve and the test box such that the sample valve is accommodated in the heating furnace.