The texture information is easy to be polished when denoising the images, especially the linear structure of the texture is easy to be damaged． A method is put forward that smooth sub-image by using modified method of combination of P-M diffusion and coherence enhancing diffusion in wavelet domain，the different wavelet sub-bands are diffused with the improved method and reconstructed, then the denoising image is obtained． Numerical experiments show that the proposed method have better effect on texture image denoising，especially on keeping the texture information, the linear structure and smoothness of the texture．