Severe pancreatitis involves severe illness impacting multiple systems and organs across the body. The rescue of severe pancreatitis should be based in the ICU, with multidisciplinary cooperation. The first step is early fluid resuscitation, with crystalloid solution preferred, and it should be rapidly completed within 48 hours of onset. The second step involves support for circulation and respiration. The third step involves the maintenance of organ functions and the use of blood purification treatments. Early use of blood purification in acute pancreatitis can remove inflammatory mediators, regulate immune dysfunctions, and protect organ functions, potentially extending the survival time of patients with severe pancreatitis. The fourth step includes monitoring intra-abdominal pressure and preventing and treating abdominal compartment syndrome. Further treatments mainly include the use of agents to inhibit pancreatic enzymes and platelet activation, as well as early jejunal nutrition. Additionally, prophylactic use of antibiotics is required, and in cases of biliary acute pancreatitis, ERCP or sphincterotomy should be performed. The final approach is surgical treatment, which is reserved for patients who do not respond to or have poor results from conservative treatment.