Provided is a method of providing a real-time robot monitoring service, in which robots in a factory are monitored in real-time by a service providing server, the method including steps of: (a) receiving state information of each axis of each of the robots from a robot controller; (b) generating preventive measure information which is related to a management state of the robot and predictive measure information which is related to a process capability of the robot and a state change pattern of the robot by analyzing the state information of each of the axes of the robot; and (c) transmitting the preventive measure information of each of the axes and the predictive measure information of each of the axes to a manager terminal of the factory.