Royal dragon health care refers to achieving the goal of good health and happiness through specific health care methods and concepts. "Yulong" refers to a dragon with auspicious meaning in traditional culture, which is often used to represent authority, dignity and other meanings; And "health preservation" refers to the practice of keeping healthy and preventing diseases through reasonable diet, exercise and conditioning. Therefore, Yulong health care is to achieve the purpose of good health and happiness through specific health care methods and concepts.