To solve the anti-oil deposition problem of switch panel, femtosecond laser was used to prepare micro/nano composite surface of the switch panel. And superhydrophobicity can be achieved, and then the adhesion of oil deposition can be reduced. In this paper, the laser ablation threshold, micro-nano structure design, and the influence of different laser process parameters and micro-nano structure on the surface wettability of polycarbonate (PC) switch panel were studied. The experimental results show that the ablation threshold of PC switch panel is 1.66μJ at 515nm. When the laser energy is 1.6μJ, the scanning speed is 200mm/s, and the overlapping ratio is 1/3 of the line width, the droplet contact angle is 161°, the superhydrophobicity is observed. PC panel with superhydro-phobicity can achieve surface self-cleaning effect, showing a huge market potential.