Method for manufacturing fuel cell assembly

A method for manufacturing a fuel cell assembly that is obtained by joining a resin member and a membrane electrode assembly having an electrode containing a porous member, the method comprising the steps of:

• arranging an end face of the porous member on a placement jig in a state abutting an end face of the resin member having a projecting part formed along the end face thereof;
• melting a part of the resin member and causing to penetrate into the porous member by pressurizing the projecting part by way of a heat-transfer member, and heating the projecting part via the heat-transfer member by abutting a heating member at an opposite side to a side contacting the projecting part of the heat-transfer member;
• and
• solidifying the part of the resin member having penetrated into the porous member,
• wherein an abutting position of the heating member relative to the heat-transfer member is set in the melting step so that a center of an abutting part in contact with the heat-transfer member of the heating member is positioned more to a side of the porous member than a center of the projecting part.