The invention discloses an energy-saving type weight-reducing vibrator. The energy-saving type weight-reducing vibrator comprises a quartz vibrator, wherein sweat suction ports are formed in the outer sides of the quartz vibrator, saline water tanks are mounted above and below the quartz vibrator, zinc sheets are mounted on the left sides in the saline water tanks, saline water preparation tanks are mounted above sweat conveying devices, water storage tanks and concentration test meters are mounted in the saline water preparation tanks, water adding ports are mounted at the tops of the water storage tanks, intelligent control valves are mounted at the bottoms of the water storage tanks, and saline water spraying devices are mounted below the saline water preparation tanks. The energy-saving type weight-reducing vibrator adopts the quartz vibrator and performs efficient vibration on closely attached parts, so that the weight is reduced, and the efficiency is relatively high; fixing band retraction devices are mounted on the left side and the right side of the quartz vibrator, the fixing bands can be simply and conveniently drawn out or retracted by the aid of the fixing band retraction devices, and the use is safe and convenient.