The invention discloses a visual two-dimensional code coding method. An input module, a picture pre-processing module, a picture channel extraction module, a picture coding module, a picture channel synthesis module and an output module are comprised, the visual two-dimensional code coding method based on information hiding is provided, a mean value of a unit image block is employed as an operation target, and coding bit is determined through ordering. The method is advantaged in that from the aesthetic property aspect, on the condition that coding robustness is guaranteed, aesthetic property of picture coding is improved, and the method is more consistent with eye characteristics; from the speed aspect, the coding and decoding time is saved through the coding and decoding method, and the method can better adapt to use conditions of the reality environment.