The invention discloses special regenerated cellulose short fiber high-simulation silk yarn. The yarn is designed to be regenerated short fiber ultra-strong twist yarn, the yarn twist coefficient reaches 1.8 to 2.5 times that of common twist yarn, and through a pre-twisting production process, the yarn with concentric conical spiral lines as a spatial main structure is formed. The invention further provides fabric woven from the yarn. The ratio of warp to weft and the varieties of the yarn are matched, and the procedures of batched warping, sizing, drafting, weaving and the like are adopted. The produced high-simulation silk (crepe) fabric is vivid in fabric style and elegant in cockling crinkle, the moisture absorption and breathability are superior to those of chemical fiber filament simulation crepe fabric, and the requirements of people for new fashion of summer clothing are met.