A pattern forming method of ejecting inks in the form of droplets to a base material including a first region and a second region which differ from each other in terms of surface energy by an ink jet method, includes: a preparation step of preparing the base material including the first region and the second region; and a droplet ejection step of simultaneously ejecting a first ink and a second ink in the form of droplets to the first region and the second region respectively by using a multipass method, wherein the inks are at least two kinds of inks including the first ink having volatility and the second ink having curability, the first ink and the first region are lyophilic, and the second ink and the second region are lyophilic.