In order to keep enough bond stress between pile foundation and pile core concrete and avoid increasing construction period and money caused by welding shear key,we study the design method of API(American Petroleum Institute),DNV(Det Norske Veritas),UK DOE(United Kingdom Department for Environment) and Code for Pile Foundation in Port Engineering,and collect the experiment achievements of relevant domestic scholars.Based on the example of Panama wharf project,we carry out the bond stress test of pile core concrete,determine the design parameters by regression method of formula in API code.The shear bond in pile can be cancelled by demonstration.The results show that the shear key is cancelled successfully,which can save 3.5 million yuan and about 2 months construction period.