Abstract: Gutian congress is an important conference with great historical significance in the history of CPC,and a shining example of combining Marxism with China's realities.The basic connotation of Gutian congress embodies a historical theme,a significant exploration,and a spirit of innovation, namely,proposing a historical theme of party's construction,exploring and solving the essential problem of the transformation and construction between old and new army,conveying the historical activity and creativity of CPC as a leading subject.The spirit of Gutian congress contains several ideological theories like the party's ideological construction,organization construction,inner-party democracy construction and army construction.It has extremely great historical impact on China's revolution and socialist modernization.