从狭义来讲，汉藏语系包括汉族语言和藏缅诸语言，从讲这一语系语言的人数来讲，它属于世界第二大语系（仅次于印欧语系），包括３００多种语言以及许多方言。从广义来说，汉藏语系还包括傣、克伦以及苗瑶诸语言，甚至还包括西伯利亚北部的叶尼塞奥斯加克人（Ｙｅｎｉｓｅｙ－? In a narrow sense, the Sino-Tibetan language family consists of Han languages ​​and Tibetan and Burmese languages. From the number of speakers of this language family, it belongs to the second largest language family in the world (after Indo-European languages ​​only) and includes more than 300 languages And many dialects. In a broad sense, the Sino-Tibetan language family includes Dai, Karen, and Miao Yao languages, and even Yenisey- ?, in northern Siberia.