The author presents a generalized superdense coding scheme based on high-dimensional two particles maximally entangled state following some ideas of superdense coding scheme based on four-dimensional two particles. The quantum superdense coding based on noisy quantum channel was discussed. The receiver（Alice）can extract dαk2logd2+logd2 (αk=minαj, j∈0,L,d－1) bits classic information by introducing one auxiliary two-level particle and perfprming corresponding unitray operation on her particles.All the parties can use some decoy photons to set up their quantum channel securely.The scheme only requires pure entangled state,which makes this scheme more convenient than others in practical application. Moreover, it has the advantage of having high communication efficiency.