The invention discloses a method for manufacturing a cashmere coat, and belongs to the technical field of garment manufacturing. The method for manufacturing the cashmere coat includes the sequentialsteps of step (1), cashmere cloth weaving, step (2), fulling processing, step (3), combined processing and step (4), garment manufacturing. In the cashmere cloth weaving step, wool yarns are knitted into cashmere knitted fabrics by a circular knitting machine. In the fulling processing step, the cashmere knitted fabrics are washed by cloth washing liquid and clear water in sequence, and then driedand set for standby use. In the combined processing step, the cashmere knitted fabrics are combined and bonded with bonding fabrics by a four-roller cloth combination machine. In the garment manufacturing step, the combined fabrics are tailored according to a garment model and then sewn into the cashmere coat as required by a normal sewing machine. The method has the advantages that the manufacturing process of the cashmere coat is precise, the product quality is high, the fabrics are dense and stiff, sueded surfaces are well-shaped and uniform, the hand feel is soft, and the finished cashmere coat has high shape retention properties to meet the needs of daily wear.