Non-woven fabrics are reinforced with PP, PP, bai or other plastic particles after melt spinning. Generally, the color of non-woven fabrics follows the color of resin particles, that is, there is no color. However, nonwoven fabrics can be colored by adding color masterbatch. Color masterbatch is a kind of particle which is made by melting toner, resin carrier and dispersant together according to the formula and stretching and granulating. In the production of non-woven fabrics, different colors, color samples and tones are adjusted and matched according to the addition amount of color masterbatch and different color masterbatch.