Subjectivity is a common problem in both philosophy and psychoanalysis. In this article, through analysis of the respective thoughts of Kant and Freud, it will be discovered that Kant's critical philosophy and Freud's psychoanalysis have a possibility of dialogue in the restriction of subject, and the basis of this possibility is the finite subjectivism. This positive dialogue between critical philosophy and psychoanalysis will have some theoretical significance for both in dealing with scientism.