A method for monitoring a quickpath interconnect link, comprising: acquiring, by a device for monitoring a quickpath interconnect link, code error information of a cyclic redundancy code check of a system under test and routing table information of the SUT, wherein the code error information of the cyclic redundancy code check comprises the number of code errors of the cyclic redundancy code check and the number of retransmissions on a quickpath interconnect link; the SUT comprises a plurality of nodes connected by the quickpath interconnect link; and the routing table information is used to obtain the topology structure relationship between all nodes in the SUT; determining, by the device for monitoring a quickpath interconnect link, whether the number of the code errors of the cyclic redundancy code check exceeds a preset code error threshold of the cyclic redundancy code check, and obtaining a first determination result; if the first determination result is that the number of the code errors of the cyclic redundancy code check exceeds the preset code error threshold of the cyclic redundancy code check, mapping, by the device for monitoring a quickpath interconnect link, the first determination result and the routing table information into a first graphical interface, wherein the first graphical interface is used to display a quickpath interconnect link connection state between the nodes in the SUT according to the first determination result and the routing table information; if the first determination result is that the number of the code errors of the cyclic redundancy code check does not exceed the preset code error threshold of the cyclic redundancy code check, determining, by the device for monitoring a quickpath interconnect link, whether the number of the retransmissions on the quickpath interconnect link exceeds a preset retransmission threshold of the quickpath interconnect link, and obtaining a second determination result; and mapping, by the device for monitoring a quickpath interconnect link, the second determination result and the routing table information into a second graphical interface, wherein the second graphical interface is used to display the quickpath interconnect link connection state between the nodes in the SUT according to the second determination result and the routing table information. acquiring, by a device for monitoring a quickpath interconnect link, code error information of a cyclic redundancy code check of a system under test and routing table information of the SUT, wherein the code error information of the cyclic redundancy code check comprises the number of code errors of the cyclic redundancy code check and the number of retransmissions on a quickpath interconnect link; the SUT comprises a plurality of nodes connected by the quickpath interconnect link; and the routing table information is used to obtain the topology structure relationship between all nodes in the SUT; determining, by the device for monitoring a quickpath interconnect link, whether the number of the code errors of the cyclic redundancy code check exceeds a preset code error threshold of the cyclic redundancy code check, and obtaining a first determination result; if the first determination result is that the number of the code errors of the cyclic redundancy code check exceeds the preset code error threshold of the cyclic redundancy code check, mapping, by the device for monitoring a quickpath interconnect link, the first determination result and the routing table information into a first graphical interface, wherein the first graphical interface is used to display a quickpath interconnect link connection state between the nodes in the SUT according to the first determination result and the routing table information; if the first determination result is that the number of the code errors of the cyclic redundancy code check does not exceed the preset code error threshold of the cyclic redundancy code check, determining, by the device for monitoring a quickpath interconnect link, whether the number of the retransmissions on the quickpath interconnect link exceeds a preset retransmission threshold of the quickpath interconnect link, and obtaining a second determination result; and mapping, by the device for monitoring a quickpath interconnect link, the second determination result and the routing table information into a second graphical interface, wherein the second graphical interface is used to display the quickpath interconnect link connection state between the nodes in the SUT according to the second determination result and the routing table information.