The present invention discloses a shock wave therapeutic instrument. The shock wave therapeutic instrument comprises a main engine, a movable arm and a shock wave source, the main engine is provided with a control end, the control end is connected with the shock wave source through an electric wire, a water inlet pipe is also connected between the main engine and the shock wave source, the shock wave source is arranged at an outer end of the movable arm, the movable arm is a two-section arm, and the shock wave source realizes three modes of movements of moving up and down, and left and right and rotating through linkage of the movable arm. An intelligent control module is arranged in the control end and stores parameter information so as to control frequency and intensity of shock waves generated by the shock wave source. An electromagnetic shock wave generating device is arranged in the shock wave source, a water bag is arranged at an output end of the shock wave source, and the waterbag contacts with an electromagnetic shock wave generating device to conduct the shock waves to act on a disease focus of a patient. The shock wave therapeutic instrument has remarkable advantages ofeasiness in mastering, safety, flexibility, convenience, light side effect, etc.