Abstract: The architecture of a networked machining system was framed according to the requirements of CNC system for networked manufacture. And the configuration language was used to set up the XML Schema mapping criterion database so as to implement the conversion of the STEP-NC programs for the information release of products with XML files, thus solving the problem of data exchange/sharing among the corporations in a network. The functional architecture of XML interpreter was designed to read relevant files so as to analyze the information such as geometric parameters, coordinates and tools, and they were all picked out and stored to provide recognizable data source for the core of the DSP controller. The program conversion and interpretation of XML files provided by the STEP-NC networked machining system are good in modularization with simple architecture, powerful function and high efficiency and, as a result, beneficial to system information integration.