To provide a conveyance device capable of quickly exchanging a mounting member and conveying a plurality of kinds of power trains.

A carrier includes a left pin 32 penetrating the left hole of a left mounting member 23 mounted on a power train 15, a right pin 46 penetrating the right hole of a right mounting member 25, a left lock mechanism 33 for locking the left pin 32, and a right lock mechanism 53 for locking the right pin 46. The locking and unlocking of the left pin 32 can be quickly performed with the left lock mechanism 33, and the locking and unlocking of the right pin 46 can be quickly performed by the right lock mechanism 53, so that even when the mounting member needs to be exchanged due to the size or shape of the power train being changed, the right and left mounting members can be easily detached from right and left carrier arms. This conveyance device can quickly respond to the exchange of the mounting members due to the kind of the power train being changed.