In a model coupler that detachably couples vehicles, energization between the vehicles in train organization is stabled regardless of curvature of a rail. A support member is swingable in line with the coupling part by extending from an attachment base side attached to a model vehicle toward a front end side facing the coupling partner and providing a front end under the coupling part. One energization part is attached to the support member and includes a first contact point formed on the attachment base side and a second contact point formed on the front end side. The first contact point is in contact with a first power collection member of the model vehicle, and the second contact point is in contact with a fourth contact point of the other energization part of the coupling partner.