Based on their own understandings of Buddhist writings, Kumārajīva and Hui Yuan, who were two representatives of Mādhyamaka and Pure Land Buddhism respectively in the age of Wei-Jin period, had developed two different moral practices, which constitutes the main contents of this paper, including a comparison between both thought of Zen, and an analysis of the similarity between both ideas of moral practice. In talking about what "Truth" is, Kumārajīva and Hui Yuan are no different in emphasizing the unreal aspect of human world, and this is why they did not authorize a transmigrating mind; but, that a real world has a entity or not should depend on what the standpoint is.