A conveyance device used in a mounting system including a mounting-related device for applying a viscous liquid to and/or arranging a member on a processing target. This conveyance device uses a pallet having a pallet-side attachment section that holds a processing target. In addition, the conveyance device includes having a robot-side attachment section arranged at a distal end section of the conveyance robot for mounting the pallet-side attachment section and the conveyance robot is configured to convey the pallet in a mounted state between a loading position and a discharge position.