The relationship of Alaya consciousness and Tathagatagarbha is viewed as the epitome of the debate in Essential nature and characteristic for Sui and Tang Buddhist, and also is one of the hot issues debated in the history of Chinese Buddhism. The paper is under the background to study FA-TSANG’s understanding about this issue and to learn about the ontological characteristics of Zen school and other Chinese buddhisms since Sui and Tang. The view of FA-TSANG on this issue reflects the mainstream thinking of Chinese Buddhist since Tang dynasty. First, the eighth consciousness is the combination of neither arising nor ceasing Unconditioned dharma and arising and ceasing arisal conditioned dharma, both forms Alaya consciousness. second, really can also be affected,and participate in the formation of base consciousness. This can be seen as Xianshou master’s overall understanding foundation of hoss consciousness and reasult form the effection of various classic translations. This is a branch of Consciousness in modern researcher’s view. This is deeply impacted by zhenti’s formless consciousness and apply Lankavatara, Faith and other thoughts using Tathagata to unifying Alaya to play Tathagatagarbha thought, but that can not represent the idea of the consciousness. This thought is different from the Consciousness preaching by Xuanzang and that is not only FA-TSANG’s view, but also reflects the ideology of Zen, Huayan and Tendai as the represents of the whole China Buddhism.
