Disclosed is a heating apparatus for manufacturing a display device, which prevents damage or breakage even though a heating member is deformed by heat, and extends a period for replacement of the heating member, wherein the heating apparatus comprises the heating member for emitting heat so as to heat a material to be deposited on a substrate prepared for manufacturing the display device, a first installing device for supporting the heating member, and a second installing device provided with a passing hole for passing the other end of the heating member therethrough.