Specific bar code based on colorful background and forming method thereof

The invention discloses a specific bar code based on a colorful background and a forming method of the specific bar code based on the colorful background. The bar code comprises at least one one-dimension bar code and colorful information and/or grey information, wherein the same type of the one-dimension bar codes are formed on a printing material in a random order, and the colorful information and/or the grey information are/is respectively superimposed on the printing material and corresponds to the area of the one-dimension bar codes. After recognition, the colorful information and/or the grey information include/includes data information. When collected by a portable electronic device which has an image catching function, the one-dimension bar code information and the colorful information and/or grey information are respectively recognized, and the misjudgment rate of recognizing the one-dimension bar codes is smaller than 40%. The colorful background is superimposed on the one-dimension bar codes, so that the coding capacity is improved on the basis of keeping the characteristic of the one-dimension bar codes, the mode of one code for one piece is achieved, and added value is brought to traceability in the mode of one code for one piece and other applications for merchants.