Border/packet gateway control systems and a control method thereof are provided in the embodiments of the invention, the system includes a service control unit, a resource control unit and an interconnecting execution unit. Through schemes of the embodiments of the present invention, the service control information obtained from the service control unit by the interconnecting execution unit in charge of current interconnecting services integrates requirements of three aspects: an IP network interconnecting request, real-time network resource information and control policies of the operator, such that both the user and the operator can obtain satisfying services. According to the schemes of the embodiments of the present invention, in the NGN, highly effective, secure and reliable network interconnecting is realized through effective control on the border/packet gateway based on the network resources and control policies, and NGN network performance is thus improved.