The invention discloses a stack system and a hardware resource management method for a stack switch, and relates to the field of network communication. The system comprises a plurality of member switches, the member switches are divided into a main stack switch and standby stack switches according to the chosen roles, the plurality of member switches are connected according to a chain or ring topology, and after the main stack switch is chosen, hardware resource database synchronization is performed among the member switches; after checking completion of the hardware resource database synchronization, the main stack switch executes system configuration, and starts hardware resource monitoring; and each member switch detects the change of a local hardware resource state, and synchronizes the change to other member switches. The method can perfect the management of the main switch in the stack system on all the member switches, and realizes unified management of hardware resources in the stack system.