The superhydrophobic surface can effectively improve the corrosion resistance of magnesium alloys. To this end, the preparation of superhydrophobic surfaces of magnesium alloys by laser etching combined with chemical immersion treatment. The surface structure and chemical composition of superhydrophobic magnesium alloy were characterized by laser confocal microscope and energy dispersive spectrometer. The results show that when the laser energy density is 20 J?cm-2,the superhydrophobic magnesium alloy surface with contact angle of 158.14° can be obtained, and it exhibits good durability. In addition, through potentiodynamic polarization test and carbon powder cleaning test, the surface of superhydrophobic magnesium alloy shows excellent corrosion resistance and antifouling self-cleaning performance. This excellent composite performance will promote its development in various fields in the future.