Fuente: WIPO "hemp" The invention belongs to the technical field of vortex spinning, and provides a vortex spinning method of hemp/cotton yarn and the hemp/cotton yarn. The hemp fibers and the cotton fibers are blended, the cotton fibers have excellent spinnability, the preparation process of the hemp yarn can be effectively improved, the preparation difficulty is reduced, the cotton fibers and the hemp fibers are mutually wrapped into the yarn through vortex spinning, and the unique yarn forming mechanism can give full play to the structural advantages of the hemp fibers; under the fluffy yarn body, the hemp fiber gap structure can better play the functions of moisture absorption, heat dissipation, ventilation, comfort, mildew prevention and bacteriostasis; and meanwhile, by controlling the roller holding distance of drawing, the spinning speed of vortex spinning and the pre-draft multiple of vortex spinning, the hemp/cotton yarn which is uniform in yarn levelness and good in strength is obtained. The result of the embodiment shows that the CVm (coefficient of variation) value of the prepared hemp/cotton yarn is 16.70%, the hairiness value is 4.23, the breaking strength is 298.1 cN, and the elongation is 5.1%.