Taking the conductive polymer PEDOT:PSS as electrode and electrochromic material, the paper-based electrochromic deviceswereprepared through three printing methods:rod coating, screen printing and gravure printing. We optimized the forming characteristics of the PEDOT:PSS film prepared by the three printing methods through doping with solvents (dimethyl sulfoxide, isopropanol, methanol and ethylene glycol, polyvinyl alcohol). In addition, glycerol was used to improve the conductivity of the film, and PEDOT:PSS was used as the color changing layer and the electrode layer of the device, which further simplifies the structure of the color changing device.The electrochromic devices wereevaluatedin terms of their starting voltage, color changing effect, ultraviolet absorption and bending performance. The results show that:All the above three printing methods can realize the preparation of paper-based electrochromic devices, and the device prepared by the gravure printing method has the best electrochromic performance, i.e., low starting voltage (U=0.18 V), short response time (t=2 s), great change in the color difference (ΔE=25.54), and large absorbance changes before and after the color change (0.27). The color difference changes to 1 after 1000 bending cycles. Therefore, electrochromic devices can be prepared on paper-based materials by printing. Combining paper-based color-changing devices with printed packaging products can not only improve the appearance of product packaging, but also increase the technical level of product packaging.