A robot machining system for industrial art objects has been developed. The objective of the system is both to make good use of technical skill of artist or artisan, and to realize the automation of machining of industrial art objects. The developed system is composed of three units: (i) input unit to record the machining data of artist or artisan directly, or to measure the model of an industrial art object; (ii) data processing unit to generate and modify model from the input data, and to transform model data into machining data; (iii) machining unit to machine industrial art objects according to obtained machining data. In this paper, the general philosophy about the system is given, and the construction of developed system, design policy and functions of each unit are described. An example of machining experiments is given to show the practical availability of the system.