A robot apparatus includes a robot main body, a distance determining section, an order determining section, and an operation controlling section. The robot main body transfers a plurality of to-be-processed objects in order so as to subject every predetermined number of the to-be-processed objects to processing, and includes a robot arm and a robot hand. The distance determining section determines an entire transfer distance of each of the to-be-processed objects. The order determining section determines a transfer order of the to-be-processed objects based on a determination result of the distance determining section so that every predetermined number of the to-be-processed objects has uniform transfer time. The operation controlling section controls operations of the robot arm and the robot hand so as to transfer the to-be-processed objects in accordance with the transfer order determined by the order determining section.