At the 18th CPC National Congress, Hu Jintao proposed the topic of ＂improving the Scientific level of the party＇s construction comprehensivety＂ again. The democratic parties and the Chinese Communist Party are intimate partners that share weal and woe with each other. Meanwhile, the democratic parties are the ones who can participate in such affairs as the building of the socialism with Chinese characteristics, and they shoulder enormous historical responsibilities in helping the ruling party, being responsible to our country, and serving our people. The characteristics of the scientific parties participating in the management of the state affairs are distinctive identity, strong systematicness and bright uniqueness. We must regard the concept of scientific development as our guidance, the ＂Three Unifies＂ as the basic principle, and consolidate the party cooperation thought constantly, in order to realize the scientific parties participating in the management of state affairs. We must regard the scientific system as our safeguard to enhance the rigor and the scientific of the system, and to improve the level of the scientific parties participating in the management of state affairs. And we must regard the scientific methods as guarantee to strengthen the scientific management, and to promote the participating in the administration and discussion of the state affairs to a new level.