The invention discloses a pair of forceps for gynecological operations. The forceps comprise a forceps handle and two forceps arms, one end of each forceps arm is connected with the forceps handle, and the other end of each forceps arm is a forceps mouth in the form of a free end; a sliding groove is formed in the middle of the outer side of each forceps arm, and a cavity is formed in each forcepsmouth; a plurality of second through holes are formed in the lower side wall of each cavity, and a tongue part is arranged in each cavity; the end, close to the forceps handle, of each tongue part isconnected with the corresponding forceps arm, and a plurality of movable teeth are arranged at the positions, corresponding to the second through holes, of the lower side face of the tongue parts; the movable teeth adaptively penetrate through the corresponding second through holes, so that the ends, away from the tongue parts, of the movable teeth penetrate through the lower side walls of the cavities and extends out of the inner side faces of the forceps mouths to reach a first height or a second height larger than the first height. According to the forceps, a large tooth height can be usedwhen tumors and the like need to be clamped, a small tooth height is used when fine operation is needed or tissue is prevented from being injured by excessive clamping of the forceps, the forceps donot need to be frequently replaced, the risk of tumor metastasis is reduced, and the success rate of the operations is increased.