Astaxanthin is widely used in food,feed,cosmetic and pharmaceutical fields due to its biological activity and color characteristics,among which natural astaxanthin has a huge market demand in recent years due to its higher antioxidant activity and safety.In this review,the extraction methods of natural astaxanthin from crustacean aquatic products were summarized,including pretreatment as well as specific extraction techniques,such as oil solubilization,organic solvent method,supercritical fluid extraction,emerging ionic liquid method and deep eutectic solvent method.Moreover,the current problems in the extraction of natural astaxanthin were analyzed and the future research direction was pointed out.