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This paper proposed a robust steganography method for H. 264 without intra-frame distortion drift by using secret sharing. The p embedded secret data was firstly distributed into n sub-secrets with specific polynomial by using (t, n)-threshold multi-secret sharing, then chose the block with prediction mode and chose DCT with paired-coefficients. Then it embeded the embedded data into the paired-coefficients of the 4x4 discrete cosine transform (DCT) block of the selected block. It could restore the hidden data by using the t sub-secrets of the video frames. The experiment results show that the method has the high frame loss and frame error robustness. In addition, the method can avoid intra-frame distortion drift and has better visual concealment. [ABSTRACT FROM AUTHOR]