In this paper,the dialectical thoughts such as straight and curve constant and variale,finite and infinite,partial and whole,approximate and precise,special and general,separateble and continuous,the opposition and the unification, the quantitative change and the qualitative change,the denial and confident are considered.

Rich dialectic thoughts are embedded in their development stages.

The dialectic thoughts of FANG Yi-zhi and WANG Fu-zhi can be compared in three aspects.

Through the interpretation of the “jiusan” line in diagrams, this paper tries to find the dialectical thought and personality implied in it.

The three main origins of Deng Xiaoping′s dialectical thought are Marxism′s dialectical thought, the traditional culture of China and the practice of revolution and construction of China; Deng Xiao ping′s dialectical thought have produced important and far-reaching effects on three aspects,that is, China′s history course,people′s thinking model and social economic development etc.

It can cultivate people to have rational brain, build up the dialectical thought, and it s favorable to help people form a right philosophy of the life and the world.