The invention discloses a lightning protection type porcelain insulator comprising a base. A thread groove is formed in the center of the bottom end of the base; and a bolt II is arranged in the thread groove in a threaded connection manner. Two fixation belts are connected to the bottom end of the base symmetrically and fixedly; fixation plates are fixedly connected to the two ends of the fixation belts; a bolt I is connected to one end, away from each fixation belt, of each of the two fixation plates jointly; and a rotating plate is fixedly connected to one end of the bolt I. According to the invention, since the base is arranged outside the porcelain insulator body, the lightning protection type porcelain insulator is installed and fixed conveniently; with the bolt II and the fixation belts, the insulator is stabilized; with a protection cover, the disturbance on the insulator by the thunderstorm is avoided; the rain and snow are stopped from entering the insulator by using a slanted baffle; and because of the ventilation hole formed under the slanted baffle, the rain preventing is realized, the air circulation is kept and a phenomenon that internal parts are damaged by the toohigh temperature is avoided; and since a lightning rod is arranged at the top, the thunder and lightning are absorbed and are led to the ground when the thunder and lightning come, so that the insulator is protected from being damaged by the thunder and lightning.