In this study, poplar, larch and Portland cement was used as main raw materials for making cement bonded particleboard(CBP), and a series of experiments was conducted to investigate the curing process of CBP by carbon dioxide injection. In addition, effects of density, particle/cement ratio, water/cement ratio, gas pressure, injection time, etc. on properties of the board were examined, respectively. The results showed as follows: (1) The optimum technological parameters of manufacturing CBP were CO 2 gas pressure of 0.7 MPa; injection time of 3 minutes; particle/cement ratio of 0.2(poplar) or 0.5(larch); water/ cement ratio of 0.35(poplar) or 0.4(larch). (2) Water/cement ratio not only determined the possibility of board formation but also greatly influenced the reaction characteristics and the mechanical properties of CBP. (3) Carbon dioxide pressures between 0.5￣0.8 MPa slightly affected the mechanical properties of CBP, but intensely influenced the reaction characteristics of cement and carbon dioxide. (4) Curing conditions were closely related to the ultimate strength of the board. The curing conditions with sufficient water and alkaline contents could improve the properties of the board. (5) Carbon dioxide injection could reduce or eliminate the detrimental cement curing inhibition of wood extractives. (6) Properties of the CBP showed a great difference from that of conventional CBP.