East.
The green dragon is located on the east side of the house. The Qinglong position is mainly located on the east side of the house. Standing at the door of the house, the right hand side is the east side, where the Qinglong position is.
Qinglong, also known as Canglong and Mengzhang, is an image in ancient Chinese myths and legends. It is the god of the East and one of the "Four Spirits of the Sky", corresponding to the "Seven Constellations of the East" among the "Four Symbols" ". According to the "Star Book", the green dragon has wings in its form. According to "Tongkao of Documents", "Danqian Zonglu Jianzheng" and "Daoyuanxue Ancient Records", the body of Qinglong is composed of the seven eastern stars among the twenty-eight constellations. It looks like a dragon, including a head with double horns and a body covered with scales. The five elements in the Middle East belong to wood and are green in color, and include the neck and base of the neck, shoulders and ribs, heart and tail.