To wave any wasteful movement of a crane in a manual planning mode in editing the working plan of a cutting system, and to prevent any time loss.

The cutting system takes a work out of a storage shelf to store materials by a crane 5, feeds it to a material handling equipment 11, and carries the material into a cutting machine 9 by the material handling equipment 11. The material is fed based on the working plan of the working program stored in a memory 19 of a control device 17. When the working plan is edited in the manual planning mode, the first range including the lines handled in achieving the re-plan is excluded from the object for re-plan, and the second range excluding these handled lines is re-planned, and thus, the wasteful movement of the crane 5 in a conventional practice can be omitted.