Tang Xuanzang, a famous monk in the Tang Dynasty, dictated the Record of the Western Regions in the Tang Dynasty, which was compiled by his disciples with the imperial edict of Emperor Taizong. Twelve volumes of The Tales of the Western Regions of Datang, written in the 20th year of Zhenguan in Tang Dynasty (646), are the accounts of Xuanzang's travels to India and the Western Regions during the period of 19. These include the five seals of Xuanzang's study tour, the wonderful fragments of breaking the heretical theory, and the climax. The Records of the Western Regions of Datang recorded the history, geography, customs and customs of this vast area from Xinjiang, China in the east, to Iran in the west, to the southern tip of Indian Peninsula in the south, to Kyrgyzstan in the north and to Bangladesh in the northeast, scientifically summarized the geographical situation of Indian subcontinent, and described the climate, lakes, topography, soil, trees and animals of this vast area from Pamirs to Aral Sea, which has been circulated in the world so far to reflect the medieval situation of this area. Therefore, it has become a precious historical heritage of the world, the most comprehensive, systematic and comprehensive geographical account of this region, and the most important historical and geographical document for studying Huadu, Nepal, Pakistan, Sri Lanka, Yugala, Afghanistan, Uzbekistan, Kyrgyzstan, Kashmir, China and Xinjiang in the Middle Ages.