Hardware hierarchical-based extensible hardware platform and extension method

The invention provides an extensible hardware platform based on a hardware hierarchy and an extension method, and the extensible hardware platform based on the hardware hierarchy comprises a business module which comprises business units corresponding to different businesses; the control module comprises controllers of different levels, the controller connected with the service unit is a first-level controller, and the controller connected with the first-level controller is a second-level controller; wherein the service unit and the connected primary controller form a single function module, and the primary controller provides a user clock, a system bus and a management interface, which are required by service operation, for the connected service unit; the second-level controller provides a first-level user clock, a first-level system bus and a first-level management interface for the connected first-level controller. According to the invention, the control module and the service module are separated and are