Xuanzang Master is a pious Buddhist, traveler, philosopher, translator, an outstanding envoy of Chinese and western traffic, and Chinese and foreign cultures, and a celebrity of world cultures. This study researches into Asoka′s stories in “Buddhist Records of the Western World during the Great Tang Dynasty” (TA-TANG-SI-YU-KI) to probe into the cause of Asoka′s building many stupas and his influence and contribution to Buddhism. This book is narrated by Xuanzang Master. It discusses the diffusion of the Mahayana and Hinayana among the peoples, and has detailed records of geography, culture, language, myth, industry, and politics. It is a masterpiece of religion, geography, and history. Asoka′s stories in this book are intricate, vivid and interesting, and their cause and effect should be a perfect model for everyone. This paper is dived into five chapters.The first chapter encompasses the motivation of this research, literature review, the area of research, research method, and the final part is the structure of the text. The second chapter illustrates the background of “Buddhist Records of the Western World”. The third chapter starts with Maurya Dynasty. Next, it talks about Asoka′s biographical sketch, Asoka′s edict, and his protection and maintenance towards Buddhism. The fourth chapter start with the cause and effect of Asoka′s being a king. Next, it describes related stories and stupas, corbels, temples that Asoka′s built and so on. It sets up titles for every story to analyze. In the end, it probes into stupas that Asoka′s built. The fifth chapter makes a conclusion about this book and Asoka′s stories’ influence on Buddhism, Central Asia, and the Western Regions.