The purpose of this research is to investigate the femtosecond laser-matter interaction for a tungsten carbide with 10% of cobalt. A femtosecond laser (1030 nm) with a pulse duration of 400 fs have been used for this study. For cumulated fluences between 1.4 and 4 J/cm², Laser-Induced Periodic Surface Structures (LIPSS) could be produced with a low ablation rate. LIPSS had a spatial period of 665 nm and an amplitude of 225 nm. The a-thermal ablation threshold fluence have been found to be from 0.35 to 11 J/cm² in cumulated fluence for a range between 1 to 100 pulses. Thus dimples could be fabricated without any thermal effects. In addition, incubation coefficient and optical penetration depth of tungsten carbide were determined. They are equal to 0.79 and 19 nm respectively.