An electronic component mounting apparatus is capable of significantly reducing a warpage amount of an electronic component warped in a case of thermocompression bonding using a non-conductive adhesive agent having a low minimum melt viscosity and having no conductive particle where a thin electronic component having a thickness smaller than or equal to 200 μm is mounted on a wiring board. In the mounting apparatus, a non-conductive adhesive film having the minimum melt viscosity lower than or equal to 1.0×103 Pa·s is placed on a wiring board placed on a base, and an IC chip having a thickness smaller than or equal to 200 μm is placed on the non-conductive adhesive film. In the mounting apparatus, the IC chip is pressurized by a thermocompression bonding head having a compression bonding portion made of elastomer having a rubber hardness lower than or equal to 60, so that the IC chip is bonded onto the wiring board by thermocompression.