Abeam matching method, comprising: determining, by a transmit end device, a beam scanning parameter group; sending, by the transmit end device, the beam scanning parameter group to a receive end device; and performing, by the transmit end device, transmit beam scanning based on the beam scanning parameter group, characterized in that the beam scanning parameter group comprises: a first quantity parameter Ntot, wherein the first quantity parameter is used to indicate a quantity of unique time units comprised in at least one consecutive channel state information-reference signal CSI-RS transmission period required for completing beam matching, the unique time unit is one of at least one time unit comprised in the at least one consecutive CSI-RS transmission period, and a transmit beam associated with the unique time unit is different from a transmit beam associated with another time unit in the at least one consecutive CSI-RS transmission period, and/or a receive beam associated with the unique time unit is different from a receive beam associated with another time unit in the at least one consecutive CSI-RS transmission period; a scanning type, wherein the scanning type comprises a first scanning type and a second scanning type, the first scanning type is used to indicate that transmit beams on different CSI-RS resources and/or ports in each unique time unit are the same, and the second scanning type is used to indicate that transmit beams on different CSI-RS resources and/or ports in each unique time unit are different; and a resource parameter, wherein the resource parameter is used to indicate one or more CSI-RS resources corresponding to each unique time unit comprised in each CSI-RS transmission period. determining, by a transmit end device, a beam scanning parameter group; sending, by the transmit end device, the beam scanning parameter group to a receive end device; and performing, by the transmit end device, transmit beam scanning based on the beam scanning parameter group, characterized in that the beam scanning parameter group comprises: a first quantity parameter Ntot, wherein the first quantity parameter is used to indicate a quantity of unique time units comprised in at least one consecutive channel state information-reference signal CSI-RS transmission period required for completing beam matching, the unique time unit is one of at least one time unit comprised in the at least one consecutive CSI-RS transmission period, and a transmit beam associated with the unique time unit is different from a transmit beam associated with another time unit in the at least one consecutive CSI-RS transmission period, and/or a receive beam associated with the unique time unit is different from a receive beam associated with another time unit in the at least one consecutive CSI-RS transmission period; a scanning type, wherein the scanning type comprises a first scanning type and a second scanning type, the first scanning type is used to indicate that transmit beams on different CSI-RS resources and/or ports in each unique time unit are the same, and the second scanning type is used to indicate that transmit beams on different CSI-RS resources and/or ports in each unique time unit are different; and a resource parameter, wherein the resource parameter is used to indicate one or more CSI-RS resources corresponding to each unique time unit comprised in each CSI-RS transmission period. a first quantity parameter Ntot, wherein the first quantity parameter is used to indicate a quantity of unique time units comprised in at least one consecutive channel state information-reference signal CSI-RS transmission period required for completing beam matching, the unique time unit is one of at least one time unit comprised in the at least one consecutive CSI-RS transmission period, and a transmit beam associated with the unique time unit is different from a transmit beam associated with another time unit in the at least one consecutive CSI-RS transmission period, and/or a receive beam associated with the unique time unit is different from a receive beam associated with another time unit in the at least one consecutive CSI-RS transmission period; a scanning type, wherein the scanning type comprises a first scanning type and a second scanning type, the first scanning type is used to indicate that transmit beams on different CSI-RS resources and/or ports in each unique time unit are the same, and the second scanning type is used to indicate that transmit beams on different CSI-RS resources and/or ports in each unique time unit are different; and a resource parameter, wherein the resource parameter is used to indicate one or more CSI-RS resources corresponding to each unique time unit comprised in each CSI-RS transmission period.