This invention discloses a method for printing on towels with four primary colors including: preparing draft of plate making and color image draft and color plate-making, applying reticles as the basis of the location of multi-chromatic color-splitting plates, drafting digitalized manuscripts and drafting laser makeup output screen plates, in which, the printing technology includes beating slurries, selection of printing device and its technics including: first of all printing plates of small flowers, then printing rough block areas and pringing large areas finally, printing tint first and dark colors later, printing overlapped colors according to the result and printing screen plates of same kind of colors separately, fine lines are printed after the large areas and dope lines are printedon the first edition and flowers are printed according to the result, which combines black and white and color-splitted images to get a simple printing method.