This project comes from my questions about the common buildings in daily life: why are all the buildings man-made, and why are all the naturally formed landscapes that humans cannot live in, so I propose that what if plants can be used as a material of architecture, or what if the buildings are naturally formed, so what if architecture are alive. After researching silk works by Neri Oxman and spider silk works by Tomas saraceno, I summarized the similarities between silk and spider silk, and finally chose fungi which can also grow autonomously as my main material. As a kind of organic material, fungi are abundant, grow quickly, attach easily to the surface of objects, and are stable after drying. For the stability of the building, the building components are mostly inorganic substances such as cement, and the trees also lose their lives after being cut down. If fungi and other self-growing organisms are involved in the building structure to integrate and symbiosis with the building, these problems can be greatly alleviated. At the same time, the organic material formed by fungi is conducive to the price reduction, can make the building become more environmentally friendly and promote the harmonious development of nature and human.