The invention discloses a waist belt type anti-shaking insulin injector, which comprises a waist belt. A box sleeves the waist belt, waist belt holes are positioned on two sides of the box, the box isfixedly connected with the waist belt through the waist belt holes, and the waist belt is fixedly connected with a buckle. The waist belt type anti-shaking insulin injector has advantages that 1, bymeans of a dial and a handle, selection and injection actions are amplified, influences of hand tremor are reduced to the greatest extent, accurate and slow subcutaneous insulin injection is realized,and an injection method is easier in injection speed control than push type injection; 2, by separation design of a liquid storage bag and a syringe, the size of the syringe is sharply reduced, the height of the whole injector is reduced, volume reduction is realized, and the injector can be stably fixed to skin; 3, a gap of a cavity is filled with a loose sterilizing material to make it convenient to sterilize autonomously after needle withdrawal; 4, a spring needle feeding disc realizes a needle concealing function, so that psychological fear of patients with enetophobia can be relieved.