A droplet discharge apparatus is used in a multilayer structure forming method of the invention. The multilayer structure forming method includes: discharging droplets of a first conductive material to form a first conductive material pattern on a surface of an object; baking the first conductive material pattern to form a wiring pattern; discharging droplets of a first insulating material including a first photo-curable material to form a first insulating material pattern bordering via holes on the wiring pattern; curing the first insulating material pattern to form a first insulating pattern bordering the via holes; making the surface of the object lyophilic; discharging droplets of a second insulating material including a second photo-curable material to form a second insulating material pattern that covers the wiring pattern and the surface of the object which has been made lyophilic, and surrounds the first insulating pattern; and curing the second insulating material pattern to form a second insulating pattern that surrounds the first insulating pattern. In addition, preferably, the first conductive material includes silver (Ag) nanoparticles.