Abstract:China's garden ancient buildings not only have a long history and unique style, but also a valuable wealth of culture and art of our nation and the world. The biggest source of danger to the loss of ancient garden buildings is natural disasters, that is, damage caused by lightning strikes. Many ancient buildings were burned down after lightning strikes. The main hazards caused by lightning strikes buildings include thermal, mechanical, electromagnetic and electrostatic effects. Lightning strike buildings are the existence of certain laws and characteristics, summed up in about 11 types of buildings. The design and installation of lightning protection in ancient buildings in gardens should integrate four influencing factors. In this way, ancient buildings can be effectively protected.