The slippery liquid-infused porous surface （SLIPS）， owing to its unique liquid-repellent properties， has been widely applied in diverse fields such as anti-fouling， anti-corrosion， de-icing and droplet manipulation. However， the SLIPS tend to experience lubricant depletion when subjected to external mechanical abrasion， consequently diminishing or even completely losing their liquid-repellent properties. In light of this， this paper begins by exploring the three foundational principles of SLIPS design， and clarifies the guiding role these theories in the design process. Five critical requirements for fabricating durable SLIPS are also systematically summarized. Furthermore， by integrating global research progress， three strategies to enhance the durability of SLIPS are distilled. These strategies involve optimizing the rough structure to improve mechanical stability， anchoring lubricants through covalent grafting techniques to ensure long-term lubrication， and establishing lubricant replenishment mechanisms to sustain the durability of lubricating layer. A concise evaluation of their respective advantages and limitations is also provided. Finally， based on the bottlenecks of these strategies， key challenges in improving the mechanical durability of SLIPS are identified. Then， the future research directions are proposed， including optimizing nano-rough substrate design， expanding the functionalization of polymer molecular brushes， developing green and environmentally friendly lubricants， and enhancing SLIPS durability through multidimensional engineering approaches. In short， this paper aims to provide a new idea and way for the further study and application of SLIPS.