A storage medium on which a three-dimensional CAD editing program enabling a computer to generate each constituent component by defining a three-dimensional shape, to store the generated constituent components in a constituent component database, to edit each of the constituent components stored in the constituent component, database, to judge whether two of the generated constituent components interfere with each other, and to perform the set operation of the two constituent components according to the history information stored in the history table, a three-dimensional CAD editing method thereof, a three-dimensional CAD device thereof and a three-dimensional CAD editing program thereof are provided. Thus, features and a component can be independently and freely edited at high speed without depending on their editing histories. Furthermore, a plurality of features and a plurality of components can be simultaneously edited without depending on their editing histories.
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