At the beginning of this paper, the definition of clothing comfort was inducted, then the basic theories about the heat and water vapor transport, the path of transmission, wetting proper.ty of the fiber material and wicking theories of the fabric were introduced. And from the physiology angle, the influnence of fiber materials on heat-moisture comfortability of clothing was analyzed.Several new-types of regenerated cellulose fibers have good processability and wear-comfort, such as Tencel, Modal, Viloft an...