For enhancing integrity of public servants efficaciously and seeking solutions to fight corruption, many democratic and law-abiding states not only raise the criminal obligations of offenders committing corruption by amending laws, but enact the Sunshine Laws fundamentally to avoid the link between public servants and illegal interests previously. By executing the system of Property-Declaration and establishing ”the Recusal of Public Servants Due to Conflicts of Interest”, the Sunshine laws are expected to build up a clean and efficient government, which public servants shall not corrupt because they have no motives, no permission, no reasons and no courage to do so. Since the Sunshine laws till now in Taiwan are still incomplete and difficult to evaluate the overall merit and demerit, the general objective of this article will start with the first Sunshine law in Taiwan-the Act on Property-Declaration by Public Servants as its main discourse, introduce the conception of Sunshine laws and system theory next, discuss the content of the Act by studying its advantages and disadvantages further, and submit the suggestions and advices finally.