The earthquake is an irresistible natural disaster. The disaster caused by it has destroyed countless homes and left many people in small villages and small towns homeless.Therefore, we have created a new refuge that is more comfortable, more private and safer. After the earthquake, the terrain is usually very rugged due to changes in the terrain or the collapse of the house. Therefore, the bottom of the design is used to raise the refuge. The bottom uses a hydraulic bracket, the LED light is designed on the bracket. When the refuge house is set on the uneven ground, one of the bases can be used as the reference height, the light of the base will display the green light, and the other three bases will follow The difference in level from the reference base changes the color of the LED light.