A robot system includes: a robot including a camera unit shooting an object in a container, a hand gripping the object, and a contact detector detecting that the hand contacts the container; and a robot control device, which includes a control unit causing the hand to contact the container; a contact detection unit detecting by the contact detector that the hand contacts the container, and finding a contact position thereof; a first processing unit calculating a position of the container from a stereo image of the container acquired by the camera unit; a second processing unit calculating a difference between the position of the container calculated by the first processing unit and the contact position found by the contact detection unit as a correction amount; and a third processing unit correcting information on a position in a height direction of the object in the container based on the correction amount.