The invention discloses a method for testing the real-time property of an electric power multimedia communication system. The method is capable of testing multimedia data receiving and presentation delay of a tested system, so that the defect of a closed-loop system only analyzing network data is avoided; the method establishes the closed-loop system based on video data, and adopts a method of building characteristic values to calculate the characteristic values quickly, and further performs real-time evaluation on the tested system. The method provided by the invention is easy to realize and use, is used for testing the real-time property of video data processing of the electric power multimedia communication system, and provides more accurate and reliable testing result.