Railway vehicle communication network

The invention relates to a railway vehicle communication network. A controller is arranged in each compartment, every two adjacent controllers are connected through a bus, each controller immediately replies after receiving data of the adjacent controller, and the self data of the controller or the data, received by the controller, of other controllers is transmitted back; a public storage module is arranged in each controller, in addition, each bus port arranged on the controller is respectively connected with the public storage module, and each controller transfers the received data to another adjacent controller after storing data transmitted from the adjacent controller into the public storage module. The railway vehicle communication network has the advantages that the dynamic transmission mode is formed in the whole communication network, and the data transmission speed is accelerated.