The invention relates to the field of underwear, in particular to a strapless warmth-keeping body shaping corset. The strapless warmth-keeping body shaping corset comprises a corset body and sleeves. A U-shaped breast supporting portion is arranged on the upper edge of the front breast face of the corset body. A strapless part is arranged on the periphery of the breast supporting portion. The opening design is adopted at the joints of the corset body and the sleeves. The back of the rear part of the corset body is clipped in a multi-piece mode. The outer-layer fabrics of the corset body and the sleeves are elastic shell fabrics. The inner-layer fabrics of the corset body and the sleeves are lint layers. The warmth-keeping body shaping corset comprises the elastic shell fabrics and the lint layers and achieves the purposes of heat preservation and body shaping; due to the fact that the U-shaped breast supporting portion has the breast supporting and body shaping functions, and the lace strapless part is arranged on the periphery of the breast supporting portion, heat preservation and the good decorative effect are achieved; due to the fact that the back of the rear part of the corset body is clipped in a multi-piece body, fat which is not distributed evenly is fixed.