A digital 3D object processing apparatus is provided, for processing a digital 3D object comprising a plurality of sub-objects belonging to one of a plurality of digital 3D object formats, comprising: a communication unit coupled to a first outer computer through a network; an interface unit coupled to the communication unit, receiving an instruction from the first outer computer; and a control command unit coupled to the communication unit, transmitting a control command to the first outer computer, wherein the first outer computer establishes a relative position of the plurality of sub-objects according to the control command, and transmits the relative position and the plurality of sub-objects to the communication unit.