Proponents of the Alliance, such as DPP legislator Lin Chuo-shui, argue that although the DPP is now the largest party in the Legislative Yuan, and there is no longer much risk of a cabinet crisis, the Executive Yuan still requires the support of a legislative majority for its policies. Getting the Alliance up and running will be helpful to national security and social stability.
贊成者如民進黨籍立委林濁水則認為，雖然民進黨已成為國會第一大黨，已無倒閣的危機，但行政院各項政策仍需獲得國會大力支持，而國安聯盟一旦組成運作，勢必有助於國家社會的安定。