Abstract: The concept of mine abstract resource layer was proposed for the first time based on resource-oriented idea and REST architecture. Function, document, interface and work flow of each heterogeneous network are abstracted as metadata of abstract resource which are marked by standard URI in the mine abstract resource layer, and the metadata are analyzed and processed in decision layer or intelligent analysis layer for correspond operation and analysis results. A design scheme of mobile digital office platform of mine based on REST architecture was proposed and implementing method was introduced that quickly integrated multi heterogeneous networks at a mobile terminal through an example of establishment of mobile office platform of Shenmu Zhangjiamao Coal Mining Co., Ltd.. The application showed that the mobile office platform runs stably with smooth operation, which improves working flexibility and efficiency greatly.