This article reveals the philosophical value of the Confucian treatise "Kong-zi jia yu," it examines issues of the theoretical importance for the history of world sinology. In the historicо-philosophical tradition, this text has long been attributed to the Confucian scientist Van Su (3rd century), however, not so long ago the situation changed significantly. In the modern scientific community, disputes around the authorship and time of writing this treatise continue. The content of "Kong-zi jia yu" is composed of stories from the life of Confucius, his conversations with his closest students, as well as prominent political figures of that time. These conversations are philosophical dialogues, they concern the most important ontological, ethical, aesthetic and epistemological issues, such as: harmonization of the Tianxia on the basis of virtuous management, the philosophical need for ritual practice, cosmological device of the Tianxia, issues traditional for early Confucianism of a pedagogical and educational nature, moral self-improvement. The diverse theme of "Kong-zi jia yu" is a valuable source that reveals the essence of the philosophy of early Confucianism. Individual fragments of "Kong-zi jia yu" coincide with the classic Confucian monuments "Shang shu," "Lun yu," "Xiao jing," etc. Although "Kong-zi jia yu" for a number of reasons, is not considered a classic text of Confucianism, but it carries an enduring philosophical value. The study of "Kong-zi jia yu" seems to the author of this work to be an urgent scientific task, the solution of which can expand the arsenal of world philosophical knowledge, as well as contribute to the dialogue of the philosophical cultures of the East and West.