A random access method, wherein the method comprises: receiving configuration information sent by a network device, wherein the configuration information comprises information about a plurality of supplementary uplink,SUL, carriers; selecting a first SUL used for random access from the plurality of SULs based on the configuration information; and initiating random access on the first SUL, characterized in that the configuration information comprises first parameter information and second parameter information; and the selecting a first SUL used for random access from the plurality of SULs based on the configuration information comprises: determining M second SULs based on the first parameter information, wherein the first parameter information is at least one of the channel quality threshold, the SUL priority, the SUL load, the quantity of available SUL resources, the slot position of the available SUL random access channel RACH resource, and the band in which the SUL is located, and M is an integer greater than or equal to 1; and if M is equal to 1, determining that the second SUL is the first SUL; or if M is greater than 1, determining the first SUL used for random access from the M second SULs based on the second parameter information, wherein the second parameter information comprises at least one piece of parameter information of the channel quality threshold, the SUL priority, the SUL load, the quantity of available SUL resources, the slot position of the available SUL random access channel RACH resource, and the band in which the SUL is located, and the first parameter information and the second parameter information are different. receiving configuration information sent by a network device, wherein the configuration information comprises information about a plurality of supplementary uplink,SUL, carriers; selecting a first SUL used for random access from the plurality of SULs based on the configuration information; and initiating random access on the first SUL, characterized in that the configuration information comprises first parameter information and second parameter information; and the selecting a first SUL used for random access from the plurality of SULs based on the configuration information comprises: determining M second SULs based on the first parameter information, wherein the first parameter information is at least one of the channel quality threshold, the SUL priority, the SUL load, the quantity of available SUL resources, the slot position of the available SUL random access channel RACH resource, and the band in which the SUL is located, and M is an integer greater than or equal to 1; and if M is equal to 1, determining that the second SUL is the first SUL; or if M is greater than 1, determining the first SUL used for random access from the M second SULs based on the second parameter information, wherein the second parameter information comprises at least one piece of parameter information of the channel quality threshold, the SUL priority, the SUL load, the quantity of available SUL resources, the slot position of the available SUL random access channel RACH resource, and the band in which the SUL is located, and the first parameter information and the second parameter information are different. determining M second SULs based on the first parameter information, wherein the first parameter information is at least one of the channel quality threshold, the SUL priority, the SUL load, the quantity of available SUL resources, the slot position of the available SUL random access channel RACH resource, and the band in which the SUL is located, and M is an integer greater than or equal to 1; and if M is equal to 1, determining that the second SUL is the first SUL; or if M is greater than 1, determining the first SUL used for random access from the M second SULs based on the second parameter information, wherein the second parameter information comprises at least one piece of parameter information of the channel quality threshold, the SUL priority, the SUL load, the quantity of available SUL resources, the slot position of the available SUL random access channel RACH resource, and the band in which the SUL is located, and the first parameter information and the second parameter information are different.