Smelly fir wood shavings was processed by urea-formaldehyde (UF) resin adhesive and used to make flat tray. The expansion rate in thickness, foot internal bond strength, and surface static bending strength were studied. Experimental result showed that the best process parameters are sizing amount 20% , hot-pressing temperature 150 ℃ , hot pressing time 30 min; the corresponding performance are the absorbing water thickness expansion rate (2 h) 7. 34% , foot bonding strength 0. 31 MPa, surface static bending strength 24. 12 MPa.