As early as the Qing Dynasty, the research on Jurchen language and Manchu language was carried out, and some achievements were made. Manchu language, in particular, is in the position of "national book", which not only compiles a large number of dictionaries, but also publishes some traditional Chinese research works. However, with the decline and collapse of the Qing Dynasty, the population using Manchu suddenly decreased, and the study of Manchu also went to a low point. Although from the end of 19 to the founding of New China, some linguists and historians have published some works on Jurchen and Manchu. However, the study of historical comparative language is rare. Before the establishment of People's Republic of China (PRC), it was Mr. Dong Tonghe who introduced Altai language family. In Introduction to Altaic Language Family, he introduced Altaic language family and its language distribution, language characteristics and classification in four parts: narrative language, Turkic language, Mongolian language and Tungusic language. In the early days of the founding of New China, there were few papers comparing Altai national languages. In 1960s, Jin Guangping, a well-known expert in jurchen language and philology, published the article "From Khitan Big and Small Characters to Jurchen Big and Small Characters", which is an important article to make a comparative study of Khitan and Jurchen from the perspective of philology. It has aroused great repercussions in academic circles and reached a consensus continuously. From 65438 to 0964, Jin Guangping and Jin Qicong made a comprehensive and in-depth discussion on the creation, structure, pronunciation and grammar of Jurchen language, which was the first monograph systematically studied by China scholars and represented the latest level of research on Jurchen language in China academic circles. The first chapter discusses the position of Jurchen language in Tungusic language family; The relationship between Jurchen language and Manchu language; This paper briefly discusses the relationship between Jurchen language and Mongolian, Chinese and Qidan language. It should be said that this is the first comparative study of Altai language family in China. It sets an example for the historical comparative linguistic study of Jurchen and Manchu, Jurchen and Mongolian and other national languages. Since 1980s, the writings of comparative linguistics in Altai language family have gradually increased, and a gratifying situation has emerged. Qing Ertai, a famous expert in the study of Khitan and Mongolian, co-authored An Introduction to Altai Language and Literature with Liu, and briefly introduced the main achievements of Altai language research abroad. My Manchu teacher, Mr. Badarongga, who is proficient in Japanese, Russian, English, Mongolian, Manchu and Daur, wrote the article The Relationship among Daur, Manchu and Mongolian, which is also an important article in comparative language research, focusing on the comparison between ancient Mongolian and Daur, and the relationship between Manchu and Daur. Very insightful and persuasive. Professor Chen Naixiong, a famous scholar of Khitan and Mongolian, gave a lecture on Introduction to Altai Language Family, which not only gave a general introduction, but also put forward his own unique views on Altai Language Family. In his view, the relationship between Altai languages is not simply summarized by genealogy tree, wave theory, mismatch theory, communication theory and loanwords theory, nor is it the result of the mechanical expansion of "three concentric circles", but some languages with common ancestry are attracted by their ancestors' languages on the one hand, and restricted by external attraction (including geographical and historical changes) on the other. The formation and evolution of language is often realized in a series of snowball movements of language. In the process of snowballing, it not only melts some superficial things, but also absorbs or generates more things, making the snowball roll bigger and bigger. In this development process, some Altai-speaking groups have completely separated from their mother, so their language has undergone more complicated changes; Some may be preserved, but they are affected very differently in very different environments; Some may die out and switch to other national languages; Others may gradually form a new language under the influence of other language societies and their own unique experiences. In addition, several articles also have their own characteristics, such as: Lin's "Altaic China Homonym"; Hu Zengyi's Principles of Altai Language Economics: Wei Wu's Integration and Differentiation-An Overview of the Origin of Altai Language Family in China; Jin Bingzhe's Discussion on the Common Words of Mongolian, Turkic and Tungusic-A Study of Five Styles in Qing Dynasty, etc. Some of them belong to a special problem, and some of them are comparative studies of some aspects of language, all of which put forward some viewpoints worthy of attention and need further exploration and research.

In short, in recent ten years, with the efforts of many scholars, most scholars have reached some consensus and realized more and more clearly that no matter whether there is Altai language community (or mother tongue) in history or whether there is primitive kinship among the three major language families of Turkic, Mongolian and Tunguska, one thing is clear: primitive Turkic, Mongolian and Tunguska are not the beginning of these languages, but they may have started from the same language. Therefore, the comparative study of these languages is still a very meaningful topic.

At present, the comparative study of the historical languages of Altai family in China needs to strengthen the comparative study of cross-language families; On the other hand, we should also pay attention to the longitudinal or horizontal comparative study of all branches within the mother tongue language family, even the nationalities in the same branch. The historical comparative study of Jurchen language and Manchu language certainly belongs to the latter.