Provision of a technology for controlling an arm to maintain hand-eye coordination is desirable in a case of using the arm for supporting an oblique-viewing endoscope.Provided is a medical support arm system including an articulated arm configured to support a scope that acquires an image of an observation target in an operation field, and a control unit configured to control the articulated arm on the basis of a relationship between a real link corresponding to a lens barrel axis of the scope and a virtual link corresponding to an optical axis of the scope.