In general,a whole is regarded as some sorts of reality different from individual mind,such as ontological whole,property/relational whole and nomological whole.However,the whole can be a sort of methodology or a view of seeing the world or a path of coping with problems from a new methodological view.And there are two different methodological holisms: one is constitutive holism which regards a problem as the constitutive whole and solves it through constitutive methods;the other is generative holism which regards a problem as the generative whole and deals with it through generative methods.In conclusion,it's emphasized that a whole should be regarded as a methodology in a strong sense and a reality in a slight sense.