Jurgen Habermas is one of the most important philosophers in contemporary Germany，who is the backbone of the second generation of Frankfurt school.Due to complicated and profound thought，which system is grand and complete，Habermas is regarded as one of the most systematic and original thinker in modern times.He inherited the critical tradition of Frankfurt school，inherited and developed Kant's philosophy，and then committed to the reconstruction of the enlightenment reason，who regarded modernity as the“unfinished business”.For the confrontation and strong criticism of postmodernism，he put forward the famous theory of communicative action.

Citizenship began in the ancient Greek civilization.From then on，citizen identities have been founded on universal coexistence.With the collapse of rational building，heterogeneous diversification under the background of globalization，the modern citizens cannot find universal coexistence.Habermas put universal coexistence in the communicative perspective with communicative rationality，who hasn't asked the content of universal coexistence，but focused on its meaning and appearance.This coexistence unifying the heterogeneous ethics and universal moral，citizens will become the main body of the essential elements to realize the coexistence，whose identity can be attributed to the process implementation of coexistence.From the citizens to the citizens of the world，citizen identities are based increasingly clearly on the concept of the rule of law that exists in the political culture.

This paper will follow the two clues to explain citizen theory from the perspective of communication.On the one hand，combing the citizen theory of Habermas from the perspective of his theory of communicative action，I will summarize the theoretical characteristics of his citizen concept; On the other hand，summarizing the ethics，the political philosophy and the philosophy of law of Habermas from the perspective of the citizen，I will confirm the important status of citizen theory in the system of Habermas's theory.

This paper is divided into five chapters.

In the first chapter I will mainly analyzed Habermas's concept of citizenship with the theory of communicative action.The first section will put the appearance of the theory of communicative action in the context of human communication historically presented and the history of the communication theory.The basic connotation of the theory of communicative action will be introduced in the second section.This part focuses on summarizing the method and the basic category of the theory of communicative action，as a theoretical foundation for the analysis of Habermas's concept of citizenship.In the third chapter I will make a comment on Habermas's concept of citizenship with the perspective of the theory of communicative action in the background of the historical forms of citizenship .Citizen from the perspective of communication has constructed citizen identity on the homologous complementary relations between the human rights and sovereignty，private autonomy and public autonomy，moral and legal，with the five basic rights recognition and protection of citizens in public life of ideal communicative community.

From the second chapter I will analyze the research process of Habermas's theory of communicative action with the perspective of citizen.The citizens state of Habermas's ethical thoughts will be analyzed in the second chapter.In the first section the historical evolution of the civility will be combed，which highlights significance to integrate the two dimensions of civility－political character and public virtue.Habermas constructed the harmonious relationship between political character and public virtue through the interaction of the two in communication practice，and realized integrality of civility.In the second section I will review the theoretical characteristics of Habermas's civic ethics.The civic ethics from the perspective of communication emphasized to solve the problem modern civil ethics faced in the path between ethics and moral，which will be argued mainly around three aspects: the collective identity and the public，discourse ethics and procedural，the certainty of ethics and the justice of law.

Analysis of citizens state of Habermas's political thought in the third chapter.The first section I will discuss the relationship between right and power in communi-cative action.Conversion of right and power constitutes the basic approach of Habermas deliberative democracy theory.The second section I will explain Habermas's political logic of rebuilding historical materialism and further analyze its political aim．The second section I will analyze the relation between citizen and law from the perspective of communication.Citizens from the receiver regulated by law into legal action in law，regard the civil rights as the interaction between public powers and private rights from the perspective of communication.

In the fourth chapter I will examine the future citizens under the sight of communication，and point out that citizens of the world who head for the unlimited communication community is citizens in legal state.In first section I will introduce Kant's permanent peace theory，Marx and Engels's the commonwealth of free people and Rawls's international justice theory which are the origin of Habermas's world citizen theory.In the second section I will mainly introduce and comment on Habermas's world citizen theory in the frame of the post－national structure.The post－national structure does not deny state，but stressed that the citizens of the world are main bodies in the world.With the moral and political practice of citizens of the world in the world communication，the world will move toward a unlimited expansion of communicative community which is the constitutional patriotism as the identity foundation and the realization of basic rights as the starting.In the third section I will comprehensively compare the commonwealth of free people and the citizen of the world towards the unlimited communication，citizen of the world towards the unlimited communication is not a substitute for Marx and Engels's the commonwealth of free people．The significance of citizens of the world towards the unlimited communication has been shown in the Commonwealth of free people．

In the fifth chapter I will integrate the theory of citizen from the perspective of communication into thinking on China's practical problems，and explore its significance in china.In the first section I will summarize the nature of the citizen from the perspective of communication based on the above.In the second section I will explore significance of the citizen theory from the perspective of communication to confirm the citizen identity in China.Civil society and civil society Generating synchronously in China，it can be the basic approach for Chinese public to confirm the citizenship that they continue to strengthen the“public”through the communicative perspective constructed by the benign social organization which is the backbone of society，rule of law as the media.In the third section I will explore new forms of civic education from the perspective of communication，and discuss the specific implementation path integration of university civic education.

Keywords: the theory of communicative action; citizen; communicative power