PROBLEM TO BE SOLVED: To provide a facility monitoring system that is introduced into a plant, building, or the like, and alleviate a load on a worker who is engaged in work of checking a management point.SOLUTION: An engineering system 5 specifies an override state in data of a management point to be managed by a control controller 2, and sets the data. The engineering system 5 collects a history of data items of the management point, which a central monitoring controller 3 has collected from the control controller 2, from the central monitoring controller 3. The engineering system 5 compares the history, which is collected from the central monitoring controller 3, with the specification in the data of the management point to be managed by the control controller 2, and checks a change of data items of the management point to be managed by the control controller 2 to see if the change of data items can be normally acquired by the central monitoring controller 3.SELECTED DRAWING: Figure 1