Disclosed are a state information request method and apparatus, and a communication system. In the embodiments of the present invention, a first base station sends, to a second base station, a first request message for requesting state information about a first cell of the second base station, wherein the first request message comprises a first measurement identifier allocated by the first base station and a cell identifier of the first cell; the first base station receives a response message, sent by the second base station, for the first request message, wherein the response message comprises a second measurement identifier allocated by the second base station; and the first base station sends, to the second base station, a second request message for requesting state information about a second cell of the second base station, wherein the second request message comprises the first measurement identifier, the second measurement identifier and a cell identifier of the second cell. By means of the embodiments o