Double-sided two-dimensional code and manufacturing method thereof and flexible circuit board

The invention provides a double-sided two-dimensional code, wherein the double-sided two-dimensional code comprises a transparent dielectric layer; a metal layer is plated on the transparent dielectric layer, and a two-dimensional code image is melted and penetrated on the metal layer. The invention further provides a manufacturing method of the double-sided two-dimensional code and a flexible circuit board with the double-sided two-dimensional code. According to the invention, the metal layer on the surface of the transparent medium layer is subjected to laser treatment to melt through the metal layer to form the two-dimensional code image, and the transparent medium layer is reserved as a carrier of the two-dimensional code image, so that the two-dimensional code effect can be read from both sides. 本发明提供一种双面二维码，所述双面二维码包括透明介质层，所述透明介质层上镀设有一层金属层，所述金属层上熔穿有二维码图像。本发明还提供一种双面二维码制作方法及具有双面二维码的柔性电路板。本发明通过对透明介质层表面的金属层进行镭射，以将金属层熔穿形成二维码图像，保留透明介质层作为二维码图像的载体，实现了双面均可读取二维码的效果。