The reason for National Compensation can be divided into two kinds based upon the provision of Nation Compensatory Law. First, because of the official illegality, it causes the liability to pay national compensatory duty, which derives from the article 2 of National Compensatory Law. Second, because of the defect of public facilities, it generates the duty of the indemnity, which derives from the article 3 of National Compensatory Law. The main discussion of this text focuses on the second version-National duty of the indemnity is generated owing to the official illegality. In terms of "Pa-Zhang River" event, it leads to the whole society to inquire the compensatory duty and comes to inquire what the fire control is responsible for if firefighters violate the law. These illegal behaviors may come from the lack of right cognition of the rescue or firefighters cognize the law differently, all of which causes the differentiation of the understanding on the fire work. Therefore, this article is intended to discuss the duty of commission and omission, and provides a lesson to firefighters on their fire work so as to reduce the similar disaster to happen once and again.