Data transmission method, device and equipment based on cloud network

The invention discloses a data transmission method, device and equipment based on a cloud network, which are used for simplifying the implementation of interconnection of equipment on the cloud and improving the data transmission performance. The method comprises the following steps: receiving a first data stream transmitted through a first elastic network card interface in an elastic network card interface pair connected with a first cloud server; the elastic network card interface pair is configured with a first elastic network card interface and a second elastic network card interface, and the first elastic network card interface is connected with the first cloud server and transmits a data stream to the second cloud server through the second elastic network card interface connected with the second cloud server via the first elastic network card interface; wherein the elastic network card interface is independently deployed in a subnet in a cloud network; and when it is determined that the first data strea