Cloud protocol gateway implementation method and system supporting heterogeneous device access

The invention discloses a cloud protocol gateway implementation system and method supporting heterogeneous device access, mainly relates to the technical field of cloud protocol gateways, and is used for solving the problems that an existing access system is low in availability, low in expandability and the like. Comprising an authority control module used for verifying whether a terminal requesting operation has a corresponding system authority; the protocol plug-in module is used for enabling the terminal meeting the system authority to be accessed to the cloud protocol gateway through a protocol analysis plug-in; the data bridging module is used for executing data transmission operation between the terminal and a preset platform; and the distributed management module is used for broadcasting to all the cluster nodes through routing tables in the cluster nodes so as to update the theme trees on all the cluster nodes. According to the method, the availability and the expandability of the system are improved.