[Purpose/significance] This paper establishes a standardized and orderly services quality control process for the current issues of information services quality control in mobile library construction in China, and guide the libraries to develop mobile information services and improve services quality better.[Method/process] This paper explores the design ideas of mobile library services quality control process by introducing ARIS modeling method. Then it takes mobile subscription service of Wuhan University library as an example, builds the services quality control process framework and core model by ARIS modeling tool, and verifies the operating results of the control process on ARIS simulation platform.[Result/conclusion] The results show that the usage of mobile subscription services, users' needs of subscription, subscription content renewal rate, and subscription articles collection have been significantly improved after the library uses the mobile services quality control process. The mobile library services quality control process model with ARIS method can help libraries clearly understand the inherent relationship between each element and each process unit in the mobile services quality control, guide different departments to cooperate with each other better and improve efficiency of services quality control, and provide a useful reference for research and practice of mobile services quality control.