Abstract:The most widely used and highest graded decorative pattern in traditional Chinese architecture is the "dragon" pattern. "Dragon totem" means good luck. "Dragon playing with Orb" is related to astronomy. In "Dragon playing with Orb", Orb originally refers to the moon,and then it became the Orb of the Sun.. The early patterns were single dragons playing with Orb, and later "two dragons playing with Orb" appeared, making the patterns more harmonious and interesting.