The invention discloses a GPU-based enhanced video denoising method. The method comprises: S1, a video image is inputted into a GPU; S2, a brightness value of each pixel point in the video image is obtained, and an energy intensity value, corresponding to a filter template, of the brightness of each pixel point is calculated according to preset filter templates; S3, according to the energy intensity values calculated at the S2 and a preset threshold value, a boundary pixel, a smooth pixel, and a noise pixel in the video image are obtained; S4, noise reduction processing is carried out on the noise pixel; and S5, enhancement processing is carried out on the boundary pixel and the smooth pixel. According to the invention, image enhancement is carried out and noise data processing is carried out, so that the good picture quality is obtained and the image effect after processing can be improved and thus the user experience is enhanced. Meanwhile, the algorithm is adjusted and thus can be applied to an operating GPU well, so that the powerful operation capacity and abundant bus resources on the GPU can be utilized fully.