A fuel cell housing structure includes a fuel cell, an electrically insulated housing and a vent gas port. The electrically insulated housing contains the fuel cell. The housing is arranged to provide a space within the housing surrounding the fuel cell. The vent gas port is provided in the housing. The vent gas port connects to the space at a position above or on a same level as the fuel cell. In the fuel cell housing structure, water entering the housing from the vent gas port is blocked from contacting the fuel cell.