Abstract
The article discusses the research work of the writer Sabit Mukanov – a classic of Kazakh literature, the author of the first textbook on Kazakh literature of the early twentieth century. In addition, Kazakh literature researchers comprehensively analyze the assessment and critical views on the first scientific work on literature of the twentieth century. The analysis of the data of Sabit Mukanov on the history of this research and its significance is of great importance. Representatives of «Alash» literature: Ahmet Baitursynov, Mirzhakyp Dulatov, Omar Karashev, Magzhan Zhumabayev, Sultanmakhmut Toraygyrov, Sabit Donentaev, Berniaz Kuleev, Mukhtar Auezov, Zhusіpbek Aymauytov revealed the essence of the direction of scientific work in a broad analysis.