In order to better use waste veneer, the authors selected waste poplar veneer from a plywood production line and a melamine-modified urea-formaldehyde resin to make parallel strand lumber（PSL）. The experimental factors studied included glue consumption,hot pressing temperature,hot pressing time and panel density. The properties of the PSL were then tested. The results showed that optimal manufacturing technology parameters obtained were 300 g/m,2, glue, 130 ℃ hot-pressing temperature, 75 s/mm hot-pressing time and 0.60 g/cm,3, panel density. The physical and mechanical properties of the PSL made by the optimal manufacturing technology parameters were excellent with less than 1.5 mg/L formaldehyde emissions, which met the E1 specification of the national standard GB 18580-2001.