The work aims to study the burst strength, puncture strength, stiffness, waterproof performance, moisture resistance and other physical properties of the paste boards coated with oxidized starch, the PVA paste board and the uncoated paper boards. The experiment was conducted in the surface sizing method to improve the physical properties of the paper board. By preparing quantitative chemi-mechanical pulp and chemical pulp boards, the paper boards were coated with oxidation starch adhesive and PVA glue of the same volume to test the physical properties of the paper board. For the paper boards coated with the sizing agent at the same temperature and relative humidity, their burst strength, puncture strength, stiffness, waterproof performance and moisture resistance were superior to those of the uncoated paper boards. The burst strength, puncture strength, waterproof performance and moisture resistance of the paper boards coated with PVA were superior to those of the paper boards coated with oxidation starch adhesive; the stiffness of the paper boards coated with oxidation starch adhesive was superior to that of the paper boards coated with PVA glue. All the physical properties of the paper boards coated with sizing agents are improved. The paper boards coated with PVA glue are of stronger strength and those coated with oxidation starch adhesive are of better flexibility.