In order to better protect the ownership of audio works,a robust digital audio w atermarking algorithm in the hybrid wavelet domain is presented,combined with th e important features of lifting wavelet transform and singular value decompositi on.First of all,the algorithm encrypts the binary watermark image twice by means of image scrambling and chaotic sequence to ensure the security of watermark.Se condly,the audio is divided into some frames according to the rows of the waterm ark,and each frame is carried on multi-level lifting wavelet decomposition.Low frequency components of the wavelet domain are selected for singular value decom position.Then the encrypting watermark information is embedded in the singular v alue of the audio to ensure the watermark robustness.In addition,the algorithm c orrects the errors by hamming encoding,further enhancing the robustness of the w atermark.The simulation results show that watermarking security and transparency of the algorithm are very good,for it has good robustness in the general audio processing of Gaussian noise,low-pass filtering,resampling,requantization,and l ossy compression.The algorithm doesn′t need the original carrier audio and the binary watermark image in extraction process,really realizing blind extraction o fwatermark.Therefore,this algorithm has high value in the practical applications .