Abstract: Error diffusion algorithm is one of the commonly used image hafltoning methods.The quality of the halftoning image is directly affected by the different image interpolation methods.We mainly analyzed the quality of error diffusion halftoning images using the nearest neighbor interpolation,bilinear interpolation,and bicubic interpolation.The image quality method based on human visual model was used to evaluate the qualities of the halftoning images.Experiment shows that the image of error diffusion halftoning using the nearest neighbor interpolation is the best.