Dao’an’s 道安 Jingtu lun 浄土論 is quoted in Huiying’s 慧影 Da zhidu lun shu 大智度論疏. In previous studies, opinions were divided about whether Dao’an lived in the Eastern Jin dynasty, or in the Northern Zhou dynasty. I consider the thought and translations in the Jingtu lun, and find that these are not representative of the Eastern Jin. Therefore, I conclude that Dao’an belongs to the Northern Zhou.