Flow control method, equipment and system

The embodiment of the invention relates to a method for determining user plane equipment, equipment and a system. The method provided by the invention comprises the following steps that: control plane equipment receives access information of terminal equipment from initial user plane equipment accessed by the terminal equipment, wherein the access information at least indicates the service level of the terminal equipment; the control plane equipment obtains a user plane determination rule based on the service level of the terminal equipment; and the control plane equipment determines target user plane equipment for bearing the traffic of the terminal equipment according to a user plane determination rule. According to the flow control method, the rule generated based on the network service regularity, the operator strategy or the load balancing scheme is configured to the control plane equipment, so that the control plane equipment can be matched with the user plane equipment suitable for the terminal equipme