The invention discloses a rotary distributing axial impact drilling tool which comprises an upper joint. A supporting cylinder is axially fixed at the lower end of the upper joint, a drill bit seat is fixed at the bottom end of the supporting cylinder, a rotary support is fixedly arranged on the inner wall of the lower portion of the supporting cylinder, a cylindrical punch hammer is axially and slidably arranged on the outer wall of the supporting cylinder, an upper cavity and a lower cavity are hermetically formed between the supporting cylinder and the cylindrical punch hammer, an upper through hole and a lower through hole are respectively formed in the wall of the supporting cylinder and communicated with the upper cavity and the lower cavity, a turbine rotor drum with the bottom supported on the rotary support is axially arranged inside the supporting cylinder, turbine blades are arranged on the inner wall of the turbine rotor drum, a first sector through hole and a second sector through hole are formed in the outer wall of the turbine rotor drum and axially correspond to the upper through hole and the lower through hole respectively, and the first sector through hole and the second sector through hole are alternately communicated with the upper through hole and the lower through hole in rotation of the turbine rotor drum. The rotary distributing axial impact drilling tool is simple and reliable in structure, impact frequency and impact power can be increased, and rock breaking efficiency is improved.