Studies on mass protests primarily examine the process, consequences and implications of protests from such angles as resource mobilization, political structure and opportunity, as well as policy frameworks, with little attention paid to the guiding role that related government policy have in dealing with mass protests. This paper analyzes the basic characters of government policies, further explains the basic logic behind their design, and takes the response to the Wukan incident as a typical case for confirmatory analysis. The study find that policy elements such as policy purpose, target groups, policy tools and executive bodies have remarkable underlying assumptions about effectiveness. If some assumptions fail to occur, policy failure is likely to appear. Therefore, in face of varying circumstances, it is recommended that policy design attach importance to elements about social construction, and adopt an open, interactive model which involves protesters in policy design.