The invention discloses a digital double-sided alignment printing production line with an infrared-proof function for webbing, and belongs to the technical field of webbing digital printing. The production line sequentially comprises a webbing vehicle, a webbing feeding device, a double-sided sizing printing device, a webbing synchronous drive roller, a drying and fixation box, a washing device, adrying cooling box and a webbing loading and collecting vehicle. The double-sided sizing printing device comprises a set of feeding and discharging rollers and a set of shift guide rollers, the feeding and discharging rollers and the shift guide rollers form a U-shaped bending loop of the webbing, and a sizing printer, a servo width adjusting mechanism and a webbing digital printing machine are sequentially arranged above the U-shaped bending loop. A sizing printer, a servo width adjusting mechanism, a digital printing machine and an infrared pre-drying device are sequentially arranged belowthe U-shaped bending loop. By means of the digital double-sided alignment printing production line with the infrared-proof function for the webbing, double-sided printing can be completed at a time, production efficiency is improved, the production energy consumption is reduced, and double-sided positioning can be achieved to effectively control the double-sided pattern dislocation rate.