A breast presser belt 1 comprising a belt body 2 adapted to be removably wrapped around a breast portion of a user, a presser member 3 adapted to extend from the belt body 2 over to the breast portion of a user, and a bag 4 adapted to be inflated by means of an appropriate fluid. The bag 4 is attached to the inner surface of the presser member 3 at a predetermined position. When the bag 4 is inflated, the breast presser belt 1 pressurizes the breast portion of a user and securely fastened to the breast portion. Thus, the pressurizing location of the breast presser belt 1 is prevented from being shifted. The breast presser belt does not require a user or patient to keep still on a bed. Allergic poisoning, previously experienced due to the use of medical adhesive tape, may be obviated. The breast presser belt may be applied to a female having larger breasts.