Muan Xingtao was a prominent Chan master of the seventeenth century. This study attempts to examine his religious and cultural legacy and his numerous accomplishments. Among his many achievements were his successful consolidation of the Obaku headquarters of Manpukuji in Japan and cultivation of many Japanese dharma heirs which greatly expanded the Obaku’s territories. He was praised for his artistic abilities in painting and calligraphy which led to the Japanese designating him as one of the “Obaku sanpitsu 黄檗三筆”. He earned the highest religious honors of the purple robe and obtained the patronage from the shogun and Japanese elite. He characteristically manifested the virtues of filial piety and loyalty and transmitted the Ming style of Buddhist teachings, which placed more emphasis on the lay believers, nenbutsu and monastic discipline to Japan. His life represented the religious influence achieved through the interconnection between nations.