A method, device, and system for monitoring a quickpath interconnect link. The method includes: acquiring, by a quickpath interconnect link monitoring device, a number of code errors of a cyclic redundancy code check on the quickpath interconnect link and a routing table information for the nodes; comparing the number of the code errors of the cyclic redundancy code check and a preset code error threshold of the cyclic redundancy code check; obtaining a result from the comparison; and mapping the result and the routing table information into a first graphical interface, wherein the first graphical interface is used to indicate the connection state of the quickpath interconnect link according to the result and the routing table information.