The article is dedicated to the prominent figure of Chinese Buddhism, Seng Zhao, who played an outstanding role in the final formation of Buddhism in China and the formation of the actual Chinese philosophical principles of Buddhism. It is shown that the concept of emptiness, which is the key concept of Prajnaparamita philosophy, has become the central object of debate among the followers of Buddhism of the East Jin era, trying to understand the essence of Buddhist teachings. The role of the writings of Seng Zhao and six schools and seven directions (Liujiaqizong) in the interpretation of the concept of emptiness for its accessibility to the Chi-nese mentality is noted. Seng Zhao's attitude to versions of six schools and seven directions of his criticism of these versions is shown. An analysis of the writings of Seng Zhao is given. The appendix offers a translation of the writings of Seng Zhao.