It is an important method to distract risk through insurance. Establishing an independent type of insurance for geo-hazards is a kind of tendency. Sinkhole is one of the six great geo-hazards. About 1/3 of our country land is dissoluble rocks, and provinces in Southwest China is especially serious, where there is more sinkhole. It causes houses fall down or split, land sink and traffic destroyed, which affects people’s life and threatens the safe of life and poverty. Developed country has had a perfect insurance system for loss by sinkhole activities. While sinkhole insurance research in china is still a blank. This article introduces sinkhole insurance system of Florida from the aspect of legislation, determining the index and loss judgment. The intent of the paper is to give enlightenment to sinkhole insurance development in our country.