An object of the present invention is to provide a film formation device that is able to prevent a size increase in a configuration around a mist jet nozzle while maintaining uniform spouting of a mist to a substrate on which a film is to be formed. The present invention includes a mist generator (2) that generates a mist of a raw material of a film to be formed, and a mist jet nozzle (1) that jets the mist generated by the mist generator to a substrate on which a film is to be formed. The mist jet nozzle includes: a main body (1A) having a hollow portion (1H); a mist supply port (5a) that supplies the mist; a spout (8) that jets the mist to the outside; a carrier gas supply port (6a) that supplies a carrier gas; and a shower plate (7) having a plurality of holes (7a) formed therein. By the arrangement of the shower plate, the hollow portion is divided into a first space (1S) connected to the carrier gas supply port and a second space (1T) connected to the spout. The mist supply port is connected to the second space.