Mahito was born into the Awata family, descended from the Wani clan and Kasuga clan and based in Yamashiro Province. In 681, Mahito was conferred the rank of, corresponding to the lower junior fifth rank under the Ritsuryō court rank system. With the establishment of the yakusa no kabane system in 684, he gained the title of Ason. In 689, he became vice-director of the dazaifu. He developed experience entertaining guests of honor from other countries. He took part in the planning of the Taihō Code alongside Prince Osakabe and Fujiwara no Fuhito, and in 701 was promoted to head of the Ministry of Popular Affairs. Mahito was also appointed as chief diplomaton a mission to Tang China, receiving a ceremonial sword from Emperor Tenmu as a symbol of his command. This was the first example of such a sword being bestowed, and the action would be repeated for other emissaries to Tang and for important generals. In mid-702 he was promoted to sangi, and a month later departed for China, accompanied by Yamanoue no Okura and the monk Dōji and bearing the Taihō Code. This was the first full Japanese diplomatic mission to China since the two met in conflict at the Battle of Baekgang. In addition to restoring normal relations, the mission also allowed for the continued maintenance of Ritsuryō, and offered an opportunity to inform China of Japan's name change from to. Arriving in Chang'an the next year, the envoys had an audience with Empress Consort Wu. The Chinese evaluated Mahito as a poised and elegant man, well-read and learned in the Chinese classics, and he received a temporary position in the government from the Empress. In 704, the mission returned to Japan, along with some Japanese who had been captives since the Battle of Baekgang. Mahito was rewarded with land in Yamato Province. He was promptly promoted to chūnagon to put the knowledge he gained in China to use in the planning of the of Ritsuryō. Upon entering the priesthood, he took on the Dharma name Dōkan. He held further positions, including as director of the Dazaifu, before being promoted to the senior third rank in 715, and dying in 719.
