| In Kant’s political philosophy, cosmopolitanism is its main content, it depicts about the rights and obligations, and permanent peace as well as the important concept of the citizen of the world. In this paper, the theory of Kant’s critical philosophy, moral philosophy and political philosophy of its cosmopolitanism preliminary inquiry, and tried to be as comprehensive as possible to expand the picture of Kant’s cosmopolitanism. In this paper, from the microscopic point of cosmopolitanism, rational point of view of the individual, and slowly into country-level macro-perspective, from cosmopolitanism personal moral requirements, the requirements of the behavior of the individual into the requirements of the country’s political system, and to make a more detailed exposition. This article also added some personal understanding and exploration results, such as Kant Contract discussed, the interpretation of Kant’s ambivalent attitude about the war, and so on.As many experts believe that the study of the philosophy of Kant, cosmopolitanism is an important foothold in Kant’s political philosophy. This article shares this view, but at the same time that cosmopolitanism is not only the end result of Kant’s political philosophy, and is also the starting point of its political philosophy. From universal rational moral law, Kant had already entered into the moral imperative of universal values, because the moral law is innate law of Practical Reason in Kant’s view, any sensible being held, for all the different ethnic groups, people from different countries a priori marked their common moral foundation. This is consistent with the cross-cultural cosmopolitanism inherent requirement of the first of personal relationship with yourself, the relationship of the individuals involved will and the moral law of practical reason, not a person, a nation people or people of a country, but for any rational being, so cosmopolitanism. The paper argues that there is nothing wrong with the "personal relationship with the people" on the first World Perspective ", which is a manifestation of the starting point of Kant’s political philosophy is cosmopolitanism. Similarly, the first in the second chapter of "individual and others" embodied rational beings with other rational beings in common maintenance free under the premise of obligations of the parties with legal rights, reflecting the handle himself with his innate universal principles, the same is based on human nature to get along with the most basic principle, it is clear this is cosmopolitanism. Therefore, individuals with their own individual and others are placed in the "cosmopolitanism horizons under reasonable has been elucidated. The second relates to the relationship between the individual and the state, this study intended to reveal the relationship of the individual and the state from the state of nature to the civil state changes in the relationship between the individual and the state to look for possible leads to the elements of cosmopolitanism, the second involved the relationship of the individual and the state, whether it is the natural state or civil status, obligations and legal rights, with the requirements of the cosmopolitanism consistent. It is second in the "cosmopolitanism Perspective" in this sense is reasonable. The third main content of Kant’s cosmopolitanism, if the first two are the theoretical basis of the theory of cosmopolitanism, then the third one is the theory of practice, because it involves the fruits of Kant’s political philosophy, is generally recognized cosmopolitanism theory, although this result is still an idea, but you can not doubt that Kant has to use its philosophical theories to the reality of the political sphere has taken a very important step. |