Abstract: In order to improve the error concealing performance of H.264/AVC，a new algorithm is presented.At the encoder，the proposed scheme first extracts the important data from each Macro Block（MB），which can be used for error concealment at the decoder.These data are embedded into the next frame using the odd-even data embedding scheme in an MB-interleaving slice-based manner.At the decoder，when the decoder cannot receive the right MB，it will extract the embedded data to conceal the corrupted MB.Experimental results show that the error concealing performance has improved greatly than that of the JM10 model，both subjectively and objectively.