​Morality occupies a significant position in Kant's philosophy, closely tied to religion, politics, metaphysics, and aesthetics. This research addresses the following question: What is the relationship between morality and law in Kant’s philosophy? And how do contemporary philosophers view Kant's stance on this relationship? The study concludes that Kant prioritizes morality over law, as his legal philosophy derives meanings and terms from his moral philosophy, such as freedom, obligation, the attribution of actions, etc. Moreover, the study finds that Habermas disagreed with Kant, arguing that the relationship between morality and law is complementary. This complementary relationship is evident in two phases: First, in his books "Moral Consciousness and Communicative Action" and "Theory and Practice", and second, in his book "Between Facts and Norms." The research employs an analytical comparative approach.