An encapsulation device includes: a fluid injection device that injects a first liquid forming a core a liquid film holder that holds in film form a second liquid forming a shell containing the core and a liquid contact device that makes the shell in contact with a third liquid, in which the first liquid is injected toward a liquid film of the second liquid retained by the liquid film holder to form a core, the core is wrapped with the second liquid on passing through the liquid film of the second liquid, thereby forming the shell, and the shell is made in contact with the third liquid to induce chemical reaction.
