PROBLEM TO BE SOLVED: To provide a robot system which prevents a care receiver from feeling discomfort, by preventing a drive mechanism from performing a motion unintended by the care receiver when he or she stands up or sits down.SOLUTION: A robot system 1 for assisting a care receiver 7 in standing up and/or sitting down motion includes: drive mechanisms 3 and 4 which execute a drive pattern for assisting in the motion of the care receiver； an instruction input device 6 which receives an instruction to cause the drive mechanisms to execute the drive pattern； a state acquisition part 21 which acquires an execution state of the drive mechanism which is executing the drive pattern； and a control part 12 which determines whether or not to cause the drive mechanisms to execute the instruction received by the instruction input device, on the basis of the execution state acquired by the state acquisition part and controls the driving of the drive mechanisms.SELECTED DRAWING: Figure 2【課題】 起立時又は着座時に、被介護者が意図しない動作を駆動機構が行うことがなく、被介護者に不快感が生ずることを防止できるロボットシステムを提供する。【解決手段】 被介護者７の起立及び着座動作を支援するロボットシステム１であって、被介護者の動作を支援する駆動パターンを実行する駆動機構３，４と、駆動機構に対して駆動パターンを実行させる指示入力を受付ける指示入力装置６と、駆動機構が実行する駆動パターンの実行状態を取得する状態取得部２１と、状態取得部より取得された実行状態を基に、指示入力装置より受付けた指示入力を駆動機構に対して実行させるか否かを決定し、駆動機構を制御する制御部１２とを備える。【選択図】 図２
