To improve the surface properties of 304 stainless steel， including superhydrophobicity， the material was subjected to femtosecond laser surface microstructuring and silane chemical modification. Scanning electron microscopy （SEM） was used to observe the structural morphology and overall condition after chemical modification， to determine the effect of different morphologies on hydrophobicity， and to analyze the correlation between the roughness of the femtosecond laser-processed microstructure and the contact angle. Simultaneously， performance tests were conducted on the superhydrophobic stainless steel to evaluate its superhydrophobic durability， corrosion resistance， self-cleaning ability， and wear resistance. Analysis and testing reveal that as the surface micro- and nano-structure roughness increases due to laser processing， the contact angle also increases. When the surface roughness reaches 1.75 μm， the hydrophobic angle achieves an optimal value of 154.9°. By calculating the corrosion rates of the two materials， it is found that the corrosion rate of the original stainless steel is 15 times that of the superhydrophobic stainless steel， and the corrosion resistance of the material has been significantly improved. The conclusions indicate that 304 stainless steel modified through surface treatment exhibits excellent superhydrophobic properties， superior corrosion resistance compared to the original stainless steel， and a good self-cleaning effect on the surface.