On the basis of a brief introduction to the relevant theories of the superhydrophobic surfaces

this review focuses on the development of key technologies in the fabrication process of metal-based superhydrophobic surfaces

attaching particular importance to the analysis of the current status of different fabrication methods

including the core points of surface preparation process

design and construction of micro-/nano-topography

modification with low-surface-energy materials

improvement of surface property

etc. The application status of metal-based superhydrophobic surfaces in various engineering fields

including self-cleaning

metal anti-corrosion

underwater drag reduction

etc.

has been summarized systematically

and the key factors affecting the mechanical stability of superhydrophobic surfaces have been pointed out. Moreover

the challenges and issues need to be faced during the development of fabrication process are also discussed. This work is expected to present reference background for advancing the practically engineering application of large-area metal-based superhydrophobic surfaces.