The invention relates to a percussion drill bored pile construction method and particularly relates to the technical field of percussion drill bored pile construction. The percussion drill bored pileconstruction method concretely comprises the following steps of S1, technical preparation; S2, pile bore positioning measurement wire laying; S3, mud preparation; S4, boring; S5, pore-forming inspection; S6, pore cleaning; S7, machining and placing of a steel bar cage; S8, underwater concrete pouring; and S9, pile foundation detection. According to the percussion drill bored pile construction method, a pedestal is made horizontal when a drilling machine is installed, hoisting pulley edges and the center of a protection barrel need to be on the same straight line, and inspection and correctionare carried out frequently; meanwhile, when a soft-hard stratum inclined interface is encountered in boring, the measure of carrying out flag refilling first and then continuing drilling is taken to rectify a deviation, a repeated filling measure is taken to carry out deviation rectification until pile-forming is completed if the bore deviation phenomenon occurs repeatedly, and the phenomenon thatas uneven stress of a coning impact face, pore position deviation occurs, and the construction speed is influenced is effectively avoided.