Provided is a spray device for which storage space in a housing location can be reduced. The spray device is provided with: a sprayer (10) that has a liquid nozzle (11) and a gas nozzle (12) and sprays a liquid and a gas; a case main body (80) that accommodates a gas cylinder (B) filled with the gas; and a tube (T) that connects the sprayer (10) and the case main body (80) and constitutes part of a gas pathway connecting the gas cylinder (B) and the gas nozzle (12). A mounting unit (89) for mounting the sprayer (10) is provided on the upper surface of the case main body (80).