The invention provides an optimization method of a LACP aggregation backup mode and equipment thereof. The method comprises the following steps that whether standby ports in connected switches can be automatically adjusted is determined; if the standby ports in the connected switches can not be automatically adjusted, the port with a maximum MAC address in the switches is set to be the standby port; if the standby ports in the connected switches can be automatically adjusted, a message is used to identify whether any switch and the connected switch possess the standby ports, and connection is established between the standby ports of the two switches. The equipment comprises an adjusting determination module, a first port setting module and a second port setting module. By using the optimization method of the LACP aggregation backup mode and the equipment thereof, when a user does not assign the standby port, and the standby port of the switch and the standby port of an opposite side are not in a same link, adjusting can be performed so that the standby ports are in the same link and aggregation of non-standby ports is normal.