Three-in-one waist seal

The utility model provides a three-in-one corset which comprises a corset body, a shirt hem and a waistband, the shirt hem is detachably arranged on the inner surface of the corset body, the bottom edge of the shirt hem extends out of the corset body in the vertical direction, and the waistband is arranged on the outer surface of the corset body. The dimension of the waist belt body is adjusted by adjusting the contraction amount of the waist belt, and the position of the waist belt on the waist belt body can be changed in the vertical direction; a pocket part is obliquely arranged on the front side face of the waist seal body, a split part is arranged on the left side face of the waist seal body, and the split part extends to the bottom end of the waist seal body. Furthermore, a plurality of buttonholes are formed in the outer surface of the waist seal body at equal intervals in the vertical direction, positioning buttons capable of being buckled into the buttonholes are arranged on the waist belt, and the p