Rhamnolipids are a type of anionic glycolipid biosurfactant that has been studied for a long time and has mature application technology. Compared with traditional chemical surfactants, rhamnolipids not only have better surface activity and stability, but also have advantages such as non toxicity, non pollution, biodegradability, and good biocompatibility. They are widely used in many fields such as medicine, food, agriculture, petroleum extraction, and environmental pollution remediation.