Robot control system of fitting of a plurality of points

A robot control system comprising:

• a robot;
• a hand attached to an end of the robot and configured to grip a second member to be fitted at a plurality of points to a first member;
• a vision sensor disposed near the hand or at a fixed position separate from the robot;
• a relative relationship calculating section configured to calculate a relative relationship between the first member and the second member at least at one of the plurality of points based on data acquired by the vision sensor;
• a contact point determination section configured to determine a contact point between the first member and the second member based on the calculated relative relationship;
• a control point setting section configured to set a control point based on the determined contact point;
• and
• a fitting control section configured to control fitting of the plurality of points based on the set control point.