历史的经验已经反复证明:法律永远落后于行政。我国是成文法国家,对于判例法,尤其是行政判例法研究较少。成文行政法律规范的自身缺陷是无法自我修正的,必需借助行政判例法的优点才能弥补。本文认为,行政判例法具有的优点在于其节约立法成本的生态意义,这一优点理应引起我国行政法立法关注和借鉴。 Historical experience has repeatedly proved that law lags behind administration forever. China is a statutory country, and there are few researches on case law, especially administrative case law. The inherent defects of the written administrative law norms can not be corrected by themselves and must be compensated by the advantages of the administrative case law. This paper argues that the advantages of administrative case law lie in its ecological significance of saving the cost of legislation. This advantage should arouse the concern and reference of China’s administrative law legislation.