Inspired by lotus leaf, biomimetic hydrophobic cellulose fiber-based textiles were usually fabricated by the lower surface energy materials. However, it is rare to witness a hydrophobic surface obtained by near infrared laser (NIR) irradiation a superhydrophilic nanomaterial, which remains a huge challenge. Herein, the CuS nanospheres was in-situ anchored on the surface of gallic acid self-polymer treated cotton fabric. Luckily, the excellent hydrophobicity of CuS nanospheres coating (contact angles of 142.7 ± 2.8°) was for the first time demonstrated after a NIR laser irradiation with 1.5 W/cm