PROBLEM TO BE SOLVED: To provide a method for control of a milking system that enables early detection of abnormal conditions such as existence of disease cattle, and always enables milking by optimal conditions.SOLUTION: A method for control of a milking system is characterized by: enabling an intercommunication between a communication unit 3t ... of a milking machine controller 3 ... mounted on a milking machine 2 ... and a management communication unit 4t of a management computer 4; transmitting milking data D ... during milking obtained from milk M milked by the milking machine 2 ... in the milking from the communication unit 3t ... of the milking machine controller 3 ... to the management communication unit 4t of the management computer 4, and monitoring the milking data D ... received by the management computer 4; and controlling an operation in the milking causing a peculiar mode Dx by a preset peculiar processing mode corresponding to the peculiar mode Dx, if the peculiar mode Dx based on preset crite
