On the basis of theoretical analysis of holographic watermark and transform domain watermark, a strong robust holographic watermarking algorithm based on DWT-SVD was proposed. The security, robustness, and invisibility of the watermarking algorithm were verified through MATLAB simulation. Embedding watermark in the transform domain of DWT and SVD can ensure invisibility and robustness; the drawback of the existing watermarking algorithm, which is not resistant to rotation, can be overcome by combining with the characteristic of holographic technology and DWT-SVD. Firstly, the watermark was encrypted to get its singular value; singular value of the low frequency coefficient after the second wavelet decomposition was obtained through wavelet decomposition of the B component of RGB image; finally, watermark was embed using weighted method. Simulation result of embedding and extracting watermark is that PSNR>20 dB and NC value closing to 1, indicating that the method is feasible; robustness simulation results showed that the algorithm can resist arbitrary rotation attack and the basic image processing operations attacks.