The present invention discloses a distributed LTE network architecture system which comprises a non-access layer, a mobile management body, a serving gateway, a PDN gateway, an eNodeB, and user terminal equipment. The non-access layer is used for transmitting the control plane protocol of a message between the user terminal equipment and the mobile management body. The control plane protocol is used for authentication establishment and mobility management. The mobile management body is used for the activation and deactivation of the user terminal equipment bearing connection. The serving gateway is used as the node of a user plane in LTE access, provides data buffer, routs and forwards the data of the user plane to an external PDN gateway. The PDN gateway provides an interface from the system to an external network and the access interface of all traffic between the user terminal equipment and the external network. The eNodeB controls the user plane data header compression and encryption. According to the present invention, the flat networking is realized, the cost of investment and maintenance is reduced greatly, and the need of personalized networking is satisfied.