A measurement method, a cell measurement method, an apparatus, and a communications node are disclosed. A first communications node sends measurement information to a second communications node, where the measurement information includes measurement signal configuration information and/or configuration information of a measurement signal combination, the two pieces of configuration information are respectively used by the second communications node to determine a resource of a measurement signal corresponding to the measurement signal configuration information and a resource of a measurement signal corresponding to the configuration information of the measurement signal combination; and the first communications node receives a measurement report sent by the second communications node, where the measurement report carries a measurement result of measurement performed by the second communications node according to the measurement information. The examples of the present invention implement measurement on a radio link after introduction of a non-backward-compatible cell or carrier.