Abstract: After the Democratic Party became the first opposition party in 1998, with a view to improve policymaking capabilities and reserve Democratic Party government policies, think tanks are regarded by the party as a tool that can be used to evolve toward a political party. The“think tank network concept” published in March 1999 became the basic indicator of the party’s think tank construction, and “the networking of think tanks, i.e., the creation of a think tank network” has become the basic direction of the party’s think tank construction. The Democratic Party must create its own policy system, information collection system and citizen policy participation system through the think tank network. After the exploration and practice of “Think Tank Network 21 Institute” and “Think Tank Network Center 21”, in 2005, a “public policy platform" named after the Democratic Party’s think tank was established. This paper aims to take the role of the Democratic Partys think tanks in power as a research perspective, summarize the experience and lessons of the Democratic Party’s think tank construction, and provide typical cases for the construction and development of party think tanks. Constructing think tanks is the right choice for the Democratic Party, which intends to seek power and lacks policy resources.Party think tanks must insist on its political nature of serving the interests of the party.In addition to policy support, think tanks also play a role in supplementing the lack of power and resources of the Democratic Party.Funds and talents are also important factors that restrict the development of party think tanks, but the development of party think tanks is more likely to be influenced by the political ideas of party leaders.

Key words: political party think tank, opposition party think tank, Democratic Party think tank, think tank network, public policy platform