A measurement apparatus for positioning a terminal device, wherein the measurement apparatus is applied to a terminal device side, and comprises: a processing unit, configured to obtain positioning measurement information for a terminal device, wherein the positioning measurement information is measurement result information of multipath positioning measurement that is based on a single access node and that is performed based on a positioning reference signal sent by the single access node; and a transceiver unit, configured to send the positioning measurement information to a positioning service function entity, wherein the positioning measurement information is used by the positioning service function entity to perform location estimation on the terminal device; wherein the transceiver unit is further configured to: before the processing unit obtains the positioning measurement information for the terminal device, send device capability indication information of the terminal device to the positioning service function entity, wherein the device capability indication information indicates whether the terminal device supports the multipath positioning measurement that is based on the single access node; wherein the multipath positioning measurement comprises: positioning measurement for a main path and at least one reflection path, or positioning measurement for at least two reflection paths, wherein the positioning measurement comprises measurement on a time of arrival, TOA, used for distance positioning and measurement on an angle of arrival, AOA, used for angle positioning. a processing unit, configured to obtain positioning measurement information for a terminal device, wherein the positioning measurement information is measurement result information of multipath positioning measurement that is based on a single access node and that is performed based on a positioning reference signal sent by the single access node; and a transceiver unit, configured to send the positioning measurement information to a positioning service function entity, wherein the positioning measurement information is used by the positioning service function entity to perform location estimation on the terminal device; wherein the transceiver unit is further configured to: before the processing unit obtains the positioning measurement information for the terminal device, send device capability indication information of the terminal device to the positioning service function entity, wherein the device capability indication information indicates whether the terminal device supports the multipath positioning measurement that is based on the single access node; wherein the multipath positioning measurement comprises: positioning measurement for a main path and at least one reflection path, or positioning measurement for at least two reflection paths, wherein the positioning measurement comprises measurement on a time of arrival, TOA, used for distance positioning and measurement on an angle of arrival, AOA, used for angle positioning. positioning measurement for a main path and at least one reflection path, or positioning measurement for at least two reflection paths, wherein the positioning measurement comprises measurement on a time of arrival, TOA, used for distance positioning and measurement on an angle of arrival, AOA, used for angle positioning.