Aiming at the problems such as high complexity and poor robustness for current video watermarking algorithms，a video watermarking algorithm based on residual texture feature is proposed by adopting an energy difference modulation. Firstly，the residual DCT coefficients obtained from the video coding process are used to model the regional texture intensity，and then the energy of the DCT coefficients on the middle and high frequency are adjusted adaptively according to the texture intensity to realize the watermark embedding. Under the condition that no additional complicated computational process is introduced，the algorithm embeds different intensity watermark information adaptively for different regions to ensure the video quality and improve the watermark robustness. The scheme takes the H.264/AVC video codec as a verification example. The experimental results show that，under the premise of guaranteeing video quality and encoding rate，the watermarking algorithm proposed in this paper has good robustness to resist attacks such as re-encoding，filter and noise. Meanwhile，the watermark extraction process meets the demand of blind detection for practical applications.