Abstract: In any case, in comparison with the nature, freedom is an ability of consciousness (or reason). Today, re-examining and re-understanding freedom from the perspective of the critiqueof reason has already had sufficient reasons and necessary conditions. Instead of separating scientific knowledge from freedom at the epistemic level, we consider them as different perspectives of one and the same activity, Nor do we distinguish between moral and scientific knowledge, we simply take them to be different perspectives of freedom.Freedom is classified as a number of perspectives here because they are partially overlapping and intersecting each other, but locating in samespace-time structure. They can be understood and recognized through four different dimensions and paradigms. Consciousness does have the ability to have such freedoms, and the most fundamental characteristic of consciousness and its freedom is their irreducibility, autonomous construction, free decision, and imagination. Since there is a deep and unpredictable interpretation gap between the physical world and consciousness, why consciousness and freedom have such capabilities and characteristics, so far no effective and reasonable explanation can be obtained. Their enormous real capacity and their unaccountability show a shocking contrast. Therefore, systematically describing these phenomena, distinguishing them from different types and clearly defining them is a work of fundamental importance.