Abstract:Lankavatara Sutra plays an essential role in the process of Wei Yingwu’s learning Buddhism.It is generally accepted that Wei Yingwu touched this sutra during the two periods when he visited the Tongde Temple in Luoyang and the Langya Temple in Chuzhou. Actually,before the two periods and when he held the position of bodyguard for the empire in the Daming Palace, young Wei Yingwu had known about the sutra from Master Jingjue of the Da Anguo Temple. The reasons of Wei Yingwu’s learning about the sutra are not only related to the Buddhism but also to his family. In the sunset of his life,Wei Yingwu once became the governor of Suzhou,where he made friends with the poets including Jiao Ran, Gu Kuang, etc. This may also be a factor in his learning Lankavatara Sutra. Lankavatara Sutra has impacts not only on Wei Yingwu’s poetic creation, but also the formation of his habit, such as vegetarian diet.