The Moon Palace is a palace on the moon in mythology where the Moon Goddess resides. It is a group of palaces which are connected to each other, and smoke and waves are entangled in it like a dream. According to legend, after Chang’e ate the elixir, because she was reluctant to give up Houyi, he lived in Moon Palace, which is a planet nearest to the earth. Every year on August 15th, Hou Yi makes mooncakes and places them in the northwest of the house. She call Moon Goddess’s name continuously, and the two will be reunited. Later, the story of “Moon Goddess Flying to the Moon” and “Houyi Making Cake” spread among the people.