This paper is the Chinese annotated translation of Chapter of Samādhi of Yoga-sūtra-bhāṣya by Vyāsa. Right after the introduction, there are some explanations on the fundamental idea and terminology of the Yoga school. Three topics are discussed with respect to the fundamental theory of The Yoga school. The first topic is the usage and function of “Puruṣa”. The second topic is the discussion of “Citta”, “Ahaṁkāra”,“Buddhi”, “Manas”. The last topic is the discussion of the “Aliṅga”,“Liṅgamātra”, “Liṅga”.The descriptions of the criticism of the Buddhist doctrines from Chapter of Samādhi of Yoga-sūtra-bhāṣya are followed. There are two criticisms on Buddhist doctrines, one is the criticism of the theory ofmomentary mind, another one is the criticism of the theory of the emptiness phenomenon.The last part of this article is the annotated translation of Chapter of Samādhi of Yoga-sūtra-bhāṣya.