To provide a facility operation managing device capable of improving the operation rate of a facility by performing the unitary management of the operation information of each facility and work information for each facility.

This facility operation managing device is provided with a controller 5-1 arranged in each facility 7-1 for collecting the operation information from the facility 7-1, a host controller 2 for monitoring a controller 5-1 and for collecting the operation information from the controller 5-1, a host computer 1 for storing the operation information transmitted form the host controller 2, and a communication network through which inter-element information is transmitted. This device is also provided with a keyboard 12 for inputting the operation information related with the facility 7-1, a bar code reader 13, an operation information data base 11a for storing the operation information of each facility from the host controller 2 and a work information data base 11b for storing the work information which are arranged in the host computer 1, and a main control part 21 for generating the unitary management information of each facility based on the operation information of each facility and the work information.