The evolution of the political situation in a country, the change of political system, economic changes, new benchmarks in national political and social, etc.., All this had its effect on the social function of the language and its components. Historical events of the twentieth century have had a major influence on the history of the Azerbaijani language. It is during this period that the Azerbaijani language has encountered a problem without precedent. We can accept the fact that, the language system has not changed in a century because social change cannot completely change the structure of a language. However, it can involve changes in certain levels of language such as the alphabet, vocabulary, dynamics of social functioning of the Azerbaijani language in different periods of the twentieth century.The process of formation of national identity began with the entry of Azerbaijan in the modern phase of development that is related to the intensity of the action on modernization. A linguistic and cultural issue was the major point in this process. It was marked by the search for national identity. At the stage of fighting for open political ideals preceded mastery of cultural and linguistic problem, because they were more affordable by the population as political concepts difficult.