Internet-based mobile finance developed by commercial banks makes for the innovations of finance operation modes, and, as a result, can sharpen the competitive edge of the banks in the new normal economy. On the way to the development of mobile financial services, commercial banks may come up against roadblocks such as imperfect laws and regulations, intensive horizontal competition and shortage of talent, etc. In this regard, supportive national policies are crucial to the development of mobile finance. Only by enhancing financial innovations, attaching importance to talent and market analysis and collaborating with other organizations can the banks suppress the interference and build a mobile finance ecosphere suitable for their own development. In this study, the diamond model is used to analyze problems with qualitative analysis.