A groove-shaped array with average 25 μm interval, 25 μm wall thickness, 75 μm depth and a columnar array with average 30 μm side length, 25 μm interval, 43 μm depth are processed by 1064 nm picosecond laser on polytetrafluoroethylene (PTFE) surface at room temperature. The water contact angle of the modified PTFE surface is 167° so that super hydrophobic surface of PTFE is prepared. It is observed that the super-hydrophobic surface reflects metal luster underwater through the glassware when the super-hydrophobic PTFE is entirely immersed in pure water. The experiment conducts that the super-hydrophobic surface can enhance reflection intensity of visible light due to total internal reflection of super-hydrophobic surface underwater.