With the increasingly prominent role of social enterprises in helping disadvantaged groups and providing social services，more and more countries and regions have begun to formulate special policies to promote the development of social enterprises. This paper use the social construction theory as a theoretical framework，aiming to explore the impact of government policies on the social construction of social enterprises and how these factors lead to social enterprises in the context of Singapore and Korea produce similar or different social construction. This paper divides the development of social enterprises in Singapore and South Korea into three stages，and summarizes the policy design and social construction from institution culture，policy-making dynamics and target population. The conclusion analyzes the future policy design of the social enterprise in Singapore and Korea，and draws the enlightenment to our country.