In order to determine the spraying amount of waterproof binder for bridge deck pavement, rubber modified binder and two typical kinds asphalt mixtures were used to analyze different factors that affect the shearing properties of waterproof bond layer by skew shear test and direct shear test, the mechanical properties of waterproof bond layer was also studied in the paper. The results show that the maximum shearing stress increases linearly as the loading speed increased, the temperature also has significant effect on the shear performance of waterproof bond layer, with the increase of temperature, the shear resistance performance became worse dramatically. The shear stress and deformation obtained from shear test can be used as the indicators to evaluate the shear resistance performance. Based on the research of above, the method of determining binder spraying amount can be proposed.