Abstract: In order to improve the hydrophilicity of raw cotton fabrics, the influence of plasma treatment parameters on the surface properties of raw cotton fabrics are studied in this study. How the plasma treatment time, treatment power and treatment distance influence the wickability of raw cotton fabrics is investigated. The XPS analysis results show that a remarkable increase of C-O-H、C=O and O-C=O bonds on the surface of raw cotton are achieved after plasma treatment, and the wettability of the fabrics treated by plasma was greatly improved. The wicking height of fabrics increased as the increase of plasma treatment time. But when treatment time was more than 25s, the increase amount of wicking height decreased. The wicking height of fabrics increased with the increase of plasma treatment output power. But the wicking height of raw cotton fabrics decreased as the increase of plasma treatment distance. The results of yarn tensile strength test showed that the tensile strength increased in varying degrees with the increase of plasma treatment time.