Overlay network, routing method, terminal device and readable storage medium

The invention provides an overlay network, a routing method, terminal equipment and a readable storage medium. The overlay network comprises a data gateway embedded in a mobile application and a bearing node generated by a cloud resource virtual machine. Different bearing nodes are communicated to form a data link; the data gateway responds to a flow request of the mobile application and forwards the flow request to the data link; the data link forwards the flow request to the source station to request flow data and forwards the received flow data to the data gateway, and the data gateway forwards the flow data to the mobile application. On this basis, the routing method based on the overlay network obtains network delay data of the overlay network in response to a flow request of a mobile application; and constructing a data link between the mobile application and the source station according to the network delay data so as to forward the traffic request to the source station to request traffic data through