The issue of registering and pacifying runaway households during Kai Yuan period and the understanding of the politics and finance in the reign of Hsuan-tsung through which researching the issue, there are any number of discussing among the scholars between China and Japen in the last decades. The works about which researching these issue of the academic circle of History was to attain the informed contribution on the perception that the historical meaning of the T'ang dynasty among the development of Chinese history in which the long term; But there are some obscure outlook or outlook that need to illuminate as for the entire process of registering and pacifying households and some concerned principle of the politics during Kai Yuan period. I therefore make concerned discussion in order to provide new thought to the academic circle. In the inception of this essay, I first dwell on the two questions as to how many people about the numbers of the Censors of which registering households and who these men was, and from this suggest some thinking so as to enlarge our discussing. This essay present some important thesis: 1. There are a lot of ”artificial village” and ”the plan of making country” during Kai Yuan period. Associating it with the thinking that the presentation both of the population and the numbers of the districts of ”country” , we can be aware that the Kai Yuan period was an Age which the executive capability of the government was sophistication. 2. There is the thinking about which ”artificial economic geography” or ”synthetic project of the national land as a whole” in the Kai Yuan period. 3. The promotion about the positional rank of ”the districts of country” provide good foundation for the compiler of Yuan-ho Chun-hsien Chih. (元和郡縣志) 4. The censoring career which lead to register runaway households by Yu-wen Jung descend along with the reform of Yao-Ch'ung and Sung Ching. They get in favor of the group which associate around Sung Ching, and those polices have firm continuity in the latter years. It also discuss some thinking about which the writing of historical monograph and Historical method in my essay.