The utility model discloses a novel drill bit that is used for road surface normal position mechanical test to be equipped with appearance, sub - drill bit, female drill bit are through welding and connecting plate one side fixed connection, connecting plate opposite side and staving welding, the welding of staving tail end is provided with the cavity pole, it is inboard in female drill bit that the son bores head position, the diameter of sub - drill bit is less than the diameter of female drill bit, the diameter of female drill bit is the same with the connecting plate diameter, sub - drilllength is greater than female drill bit. The combination of this application through sub - drill bit, female drill bit can be bored and get the annular space being equipped with the appearance position, not only can satisfy the test that the normal position was drawn, also can provide interlaminar shear resistance strength test required horizontal displacement space, the combination of adopting sub - drill bit, female drill bit can improve an existing field test appearance efficiency fully greatly, saves the close traffic time, and this application combination of adopting sub - drill bit, female drill bit once bores to get and is equipped with appearance, will reduce drilling to the disturbance of test position, improves the reliability of test result.