The utility model discloses a novel warm-keeping and breathable composite shell fabric. The novel warm-keeping and breathable composite shell fabric comprises a top-layer shell fabric, a warm-keeping and breathable film and a bottom-layer shell fabric, wherein the top-layer shell fabric, the warm-keeping and breathable film and the bottom-layer shell fabric are arrayed in sequence from top to bottom; the top-layer shell fabric is stuck and fixed on the top face of the warm-keeping and breathable film; the bottom-layer shell fabric is in sewed connection with the warm-keeping and breathable film; the warm-keeping and breathable film is provided with a plurality of air vents. According to the novel warm-keeping and breathable composite shell fabric, the top-layer shell fabric, the warm-keeping and breathable film and the bottom-layer shell fabric are arrayed in sequence from top to bottom; the warm-keeping and breathable film has heat-insulation and warm-keeping performances; the warm-keeping and breathable film is provided with the air vents so as to have the breathing warm-keeping, windproof and rainproof effects and the like; compared with the prior art, the novel warm-keeping and breathable composite shell fabric has the breathing function; the warm-keeping performance is improved, the use comfort is enhanced and the thickness and the weight of the shell fabric are reduced; the novel warm-keeping and breathable composite shell fabric has the advantages of being light and thin and is applied to products including clothing, home textiles, shoes and the like.