PROBLEM TO BE SOLVED: To provide an operation diagnosis method of a robot capable of avoiding failure by diagnosing robot operation and of reducing maintenance time by a detail display of an abnormal portion and the reproduction of the robot operation on a panel.;SOLUTION: In the operation diagnosis method of the robot having a plurality of motors for respectively driving a plurality of drive shafts, manipulators, and sensors and moving the manipulators by the drive shafts, an operation pattern made to be the object for diagnosis of the robot is set to at least one drive shaft. In the operation pattern in the initial state of the robot, a plurality of input/output signals of a control device for controlling the plurality of the motors measured at a plurality of times and a plurality of input/output signals of an equipment for controlling the sensors and manipulators are made to be determination data, and newly measured determination data is made to be diagnosis data. It is determined whether the robot operation is normal or not when newly measured by determining whether or not the diagnosis data is included in the determination data through a statistical pattern recognition method.;COPYRIGHT: (C)2011,JPO&INPIT
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