The invention discloses a preparation method of filament sticking out velvet, comprising the following steps: (1) preparing grey cloth, and putting the grey cloth into sour liquid for preparation; (2) preparing the sour liquid; (3) printing the sour liquid and charring; and (4) washing and tidying, and drying by a medium woolen cloth blanket. In the preparation method, base tissues are exposed, face tissues form special uneven patterns, refraction sensitivity is dramatically contrasted and has strong stereoscopic impression, and the product is mainly used for clothes and decorating fabric.