To present the operation states of processes corresponding to working devices to an operator in an intuitively easy-to-see state by presenting work environment information to operation evaluating facilities in work spots and allowing them to change the work plan when information embedded at the time of work planning is different from work environment information and work contents.

Planning support facilities 22 take in work environment information on work spots and generates and transfers work information to the operation evaluating facilities 23. The operation evaluating facilities 23 generate and transfer control instructions characteristic of working devices 24 to the working devices through guide control facilities 21. The guide control facilities 21 take in the work environment information and control and monitor the working devices 24 which are arranged at the work stops with the control instructions of the in-operation evaluating facilities 23. Here, if specific information embedded in the operation evaluating facilities 23 at the time of work planning is different from the work environment information and operation contents, the work environment information is displayed by a presenting means 28 of the in-operation evaluating facilities 23, the work plan is altered at any time, and remote work is controlled and carried on.