The utility model discloses a recycling of waste plastic utilizes 3D printer, include work main part, melting equipment, spout system device and virtual model platform, the gyro wheel is installed to the left and right sides below of work main part, laser scanning device is installed in the left side of work main part, data processing device is installed on laser scanning device's right side, sensor controlling means is installed to data processing device's top, the computer unit is installed on sensor controlling means's right side, melting equipment is installed on the upper left side of work main part, inlet piping is installed in melting equipment's left side, imported groove is installed to inlet piping's top, melting equipment is connected through the conveying pipeline with the fixed stay, virtual model platform is installed on the right side of fixed stay. The utility model relates to a recycling of waste plastic utilizes 3D printer makes waste plastics resource changing waste into valuables, effectual cyclic utilization and the sustainable development strategy of having realized.