“Das Kapital” is both a theory work and a history book, which contains the dialectical narration. It is true that Social objective criticisms consist of the system of Das Kapital. There’s no doubt about playing an important part of “Criticism”. The question shall be “Commodity Criticism” and “Capital Criticism” in Das Kapital. This is a problem of history, and not a specifically scientific problem. Its content is made up of both the “dao” of value, the “de” of value, and the “dao” of capital, the “de” of capital. They are called by “science of events”. The way of research includes the comprehension to history called by “object of practice” and “object of knowledge”. It might as well really help us out of “Kant’s theory of knowledge”.