A robot control device includes: a graphic primitive selection unit that selects graphic primitives having a tag indicating machining details from CAD data in a CAD device; a tool data extraction unit that extracts, from the database unit, information on a machining tool associated with the machining details indicated by the tag attached to the selected graphic primitives; and an operation planning unit that allows a robot to perform a machining operation according to the extracted information on the machining tool based on the selected graphic primitives.