With the explosive growth of high-speed wireless data demand and the number of mobile devices, fog radio access networks (F-RAN) with multi-layer network struc-ture becomes a hot topic in recent research. Meanwhile, due to the rapid growth of mobile communication traffic, high cost and the scar-city of wireless resources, it is especially im-portant to develop an efficient radio resource management mechanism. In this paper, we focus on the shortcomings of resource waste, and we consider the actual situation of base station dynamic coverage and user require-ments. We propose a spectrum pricing and allocation scheme based on Stackelberg game model under F-RAN framework, realizing the allocation of resource on demand. This scheme studies the double game between the users and the operators, as well as between the traditional operators and the virtual operators, maximizing the profits of the operators. At the same time, spectrum reuse technology is adopted to improve the utilization of network resource. By analyzing the simulation results, it is verified that our proposed scheme can not only avoid resource waste, but also effectively improve the operator’s revenue efficiency and overall network resource utilization.