According to legend, in Qing Dynasty, Fei Yi just gave birth to a prince. Because Fei Yi had stomach trouble and was weak after delivery, Gan Long ordered the chef to stew tonic for Fei Yi, but she had no appetite for anything and the chicken became thinner and thinner. The imperial doctor in the palace tried his best to make all kinds of precious tonics for Fei Yi, but to no avail. Qianlong summoned the imperial doctor and the chef to deliver a decree. No matter what method is used, Fei Yi's illness will be cured. The chef thought of the method that "medicine is better than food", so he improved the traditional folk practice of eating chicken soup in confinement, put the chicken in the pig's belly and stew the soup with precious herbs. After eating, Fei Yi really had a big appetite. After a period of diet conditioning, Fei Yi's stomach trouble has healed, and her skin color is ruddy, shiny and beautiful. This dish not only cures diseases and strengthens the body, but also has the effect of health care. From then on, Qianlong called this dish "Phoenix reincarnation", which is now pork belly chicken hot pot, and it has been widely circulated among the people since then.