The invention provides a UV machine with a damping material collecting and discharging structure, and belongs to the technical field of UV printer equipment. The UV machine comprises a discharging airexpansion roller, a discharging tensioning roller, a first steering roller, a damping roller, a second steering roller, a printing platform, a main driving roller, a lower pressing roller, a lamp box, a material receiving supporting roller and a material receiving air expansion roller which are sequentially arranged, wherein the tensioning degree of a material belt can be well adjusted through the discharging tensioning roller, different balance weights can be arranged, the tensioning degree can be adjusted through the first steering roller, the conveying speed of the material belt can be well adjusted through the damping roller, the influence of too fast conveying of the material belt on the tensioning degree is reduced, a driving lower pressing roller is arranged, the material belt canbe pressed before printing, the tensioning degree of the material belt during printing is further guaranteed, and the printing effect of the material belt can be better.