A fuel cell generation system, in which an interior of a package is partitioned into a gas path compartment and a non gas compartment with a partition wall, a component through which flammable gas flows is placed within the gas path compartment, a part of the frame member of the package constituting the gas path compartment is provided with gas path compartment inlets, a gas path compartment outlet and a ventilation fan, a component through which the flammable gas does not flows is placed within the non gas compartment, and a part of the frame member of the package of the non gas compartment is provided with a non gas compartment inlet, allowing a blower inlet to open into an interior of the non gas compartment and allowing an air outlet to open into an exterior of the package.