The utility model discloses a high-stability anti-vibration drilling device. Including a housing, a circular opening is formed in the bottom end of the shell; a circular through hole is formed in thetop end of the shell; the shell is slidably connected with a connecting rod at the circular through hole; a buffer device is welded at the bottom end of the connecting rod; the buffering device comprises a fixing box, a round through hole is formed in the bottom end of the fixing box, a telescopic rod is slidably connected to the round through hole of the fixing box, a linkage plate is welded to the bottom end of the telescopic rod, deflection rods are rotatably connected to the two sides of the linkage plate, an anti-falling plate is welded to the top end of the telescopic rod, the diameter of the anti-falling plate is larger than that of the round through hole, and the telescopic rod is sleeved with second springs. Compared with an existing device, the drilling device has the advantagesthat the stability of the drilling device can be well kept during drilling, the influence on the drilling precision and the damage to raw materials caused by strong vibration are avoided, and the whole drilling device has good adaptability.