Locust bean gum is a natural polysaccharide polymer that has attracted widespread attention in the field of drug delivery in recent years. Its unique structure and biocompatibility make it an ideal drug carrier. Locust bean gum can form a stable colloid system with excellent viscosity and adhesion, helping to prolong the retention time of drugs in the body. At the same time, its porous structure is conducive to efficient encapsulation and release of drugs. Locust bean gum also exhibits good biodegradability, reducing its adverse effects on the human body. In terms of nano-drug delivery, colloidal delivery and microsphere systems, locust bean gum has shown potential for a wide range of applications, bringing new ideas to the field of drug delivery.