There are a lot of accidents occurred in the domestic public location and amusement park recently. The main reason is that the government and the public do not have enough knowledge and attention concerning the public liability insusrance. The public liability insurance not only provides the enterprise the protectin against claims arising out of bodily injury or damaged property of the public but also provides protection for the life and property of the public. Therefore, the purpose of this paper is to study and research the topic of public liability insurance. And we hope that the government and the enterprise can pay attention to the disaster and propagate the public liability insurance for reducing the public accidents.