An antenna configuration method, to be applied to a terminal, wherein the terminal is configured to support a primary card and a secondary card, identifiers of at least two primary receive paths and identifiers of at least two diversity receive paths are configured on each band supported by the secondary card, one primary receive path and one diversity receive path are denoted as a 2R path, and the method comprises: receiving configuration information from a first base station and a second base station, and determining a first band and a second band based on the configuration information of the first base station and the second base station, wherein the first band is a band configured by the first base station for the primary card, and the second band is a band configured by the second base station for the secondary card; if the secondary card does not support the first band, determining a first identifier and a second identifier of a first 2R path based on the second band, a third identifier and a fourth identifier of a second 2R path based on the second band, and determining a fifth identifier and a sixth identifier of a third 2R path based on the first band, wherein the first identifier, the third identifier, and the fifth identifier are identifiers of primary receive paths, and the second identifier, the fourth identifier, and the sixth identifier are identifiers of diversity receive paths; and determining, based on the first identifier, the second identifier, the third identifier, the fourth identifier, the fifth identifier, the sixth identifier, and a selection condition stored in the terminal, to communicate with the second base station through the secondary card by using the first 2R path or the second 2R path, wherein the selection condition comprises: the secondary card communicates with the second base station by using the first 2R path if both the first band and the second band are low bands or medium-high bands; or the secondary card communicates with the second base station by using the second 2R path if the first band is a low band and the second band is a medium-high band, or the first band is a medium-high band and the second band is a low band. receiving configuration information from a first base station and a second base station, and determining a first band and a second band based on the configuration information of the first base station and the second base station, wherein the first band is a band configured by the first base station for the primary card, and the second band is a band configured by the second base station for the secondary card; if the secondary card does not support the first band, determining a first identifier and a second identifier of a first 2R path based on the second band, a third identifier and a fourth identifier of a second 2R path based on the second band, and determining a fifth identifier and a sixth identifier of a third 2R path based on the first band, wherein the first identifier, the third identifier, and the fifth identifier are identifiers of primary receive paths, and the second identifier, the fourth identifier, and the sixth identifier are identifiers of diversity receive paths; and determining, based on the first identifier, the second identifier, the third identifier, the fourth identifier, the fifth identifier, the sixth identifier, and a selection condition stored in the terminal, to communicate with the second base station through the secondary card by using the first 2R path or the second 2R path, wherein the selection condition comprises: the secondary card communicates with the second base station by using the first 2R path if both the first band and the second band are low bands or medium-high bands; or the secondary card communicates with the second base station by using the second 2R path if the first band is a low band and the second band is a medium-high band, or the first band is a medium-high band and the second band is a low band. the secondary card communicates with the second base station by using the first 2R path if both the first band and the second band are low bands or medium-high bands; or the secondary card communicates with the second base station by using the second 2R path if the first band is a low band and the second band is a medium-high band, or the first band is a medium-high band and the second band is a low band.