On this basis, two theoretical models appeared to the world. In 1936, Wenzel added a surface roughness factor "r" to Young's equations. [7] In 1944, Cassie and Baxter showed that the composite interface of solid and air can affect the superhydrophobicity. [8] Since then, the theory and analysis of surface has aroused enormous interest among scientists and researchers. In 1997, Barthlott and Neinhuis proposed the "lotus effect," [9] which is a hydrophobic and self-cleaning effect originated from the hierarchical structure of lotus leaves. A flurry of research on superhydrophobic surfaces came after that. Gradually, research on fabrication of surfaces with special wetting property became popular.The commonly used materials for daily applications contain textiles, glass, metal, and their alloys whose surfaces can be protected from being wetted, contaminated, or fouled by water and oil pollutants. Most metal materials will inevitably be oxidized when they encounter common liquid corrosion media, such as water, and the oxide film cannot effectively protect them. If the metal is covered with superhydrophobic surface, the air cushion contained in the micro-nano composite structure on the surface will protect the metal and separate the direct contact between the substrate and the liquid. It makes it difficult for corrosive ions to reach the metal surface, which significantly improves the corrosion resistance of the metal. However, the air cushion is unstable and easily replaced by liquid under external pressure and high temperature, losing its superhydrophobicity and corroded by liquid.At present, there are two main research directions of liquid repelling surfaces: Cassie-Baxter water contact state surfaces and lubricant-liquid contact state surfaces. The Cassie-Baxter contact surface designation was inspired by lotus leaves, butterfly wings and Inaba, mainly included superamphiphobic, superhydrophobic, and superoleophobic surfaces. These artificial surfaces can be combinate by low surface energy substance modification and micro-nano structures. Besides, with the inspiration of Nepenthes, lubricant-liquid contact state surfaces are designed. In 2011, Joanna Aizenberg of Harvard University and her colleagues first introduced "slippery liquid infused porous surface" (SLIPS)-that each consist of a film of lubricating liquid locked in place by a micro/nano porous substrate. [10] Compared with superhydrophobic surface, its air layer is replaced by immiscible liquid layer, which provides a more Slippery liquid infused porous surface (SLIPS) inspired by the microstructure of carnivorous Nepenthes has the potential to be used in a wide range of fields, including nautical, industrial, medical, etc. Due to their excellent optical transparency, self-healing after mechanical injury and controllable wetting properties, SLIPS has attracted extensive research interest. With appropriate lubricants, sufficient performance will be armed to the surface so as to adapt for further requirements. In this review, the first part focuses on the b...