A new color image watermarking algorithm was proposed based on DWT domain and mid frequency coefficients were select to embed watermark. A meaningful binary image was chosen as watermark image and then according to watermark image value, the watermark was embedded two times by modifying the intensity in the middle frequency coefficients of the two different directions. Experimental results showed that the proposed algorithm has better imperceptibility, robustness to salt and pepper noise, additive Gaussian noise, median filtering, image rotate, image scaling and JPEG compression processing operation etc.