The rapid development of researches on artificial intelligence has proposed a potential but strong demand for highly systematic psychology theory. As Buddhism is considered to be a rigorous and logical oriental psychology system, the Five-Aggregate Model, which is the thread of Buddhism Psychology, is elaborated detailedly in this article to analyze the structure of an ideal artificial intelligence. In the Five-Aggregate Model, activities of a subject with a mind were divided into five aggregates (khandas), which are rūpa (physical matter and body), vedanā (feelings, or affect valence, to be precise), sa??ā (perception, or cognition of conceptions), sa?khāra (volition), and vi??ā?a (phenomenal consciousness). To clarify the question that how to build an artificial intelligence subject within the principles of Five-Aggregate Model, a five-level hierarchy of Subject with Mind was presented. At the Physical Level, a subject with mind shall provide the material environment and the sensors of rūpa, reflect vedanā changes by facial or body expressions, produce physical or verbal behavior in the control of sa?khāra, and display the processing of vi??ā?a. At the Manifesting Level, a subject with mind should be able to manifest real-time activities of the eight kinds of vi??ā?a, which contains the activities of other levels. At the Psychological Level, a subject with mind should execute psychological processing functions to generate data of vedanā, sa??ā and sa?khāra, and characterize the contents and objects of these functions in material, abstract, verbal or relational forms. The System Level and the Storage Level correspond with deep processes of the seventh and eighth vi??ā?a, especially the eighth one called ālaya-vi??ā?a, which actually was the noumenon of the whole world. At the System Level, a subject with mind should arrange and organize the operations of the whole system with four main functions. The first is to provide the processing of whole system with a tag of "Myself" to the Manifesting Level. The second is to control the environment to reward or punish this subject according to the history of its behavior. The third is to generate and record data into the Storage Level, while the fourth is to convert these data into actual activities of any level in this system. Finally, at the Storage Level, a subject with mind should store several types of data that the other levels may use. These data includes: 1. basic attributes and existing forms of physical matter, 2. drivers of sensors and operators of the Physical Level, 3. functions to realize the law of physical world, 4. functions of psychological processes, 5. functions to characterize psychological data, 6. decoding solution of physical or psychological data, 7. manifesting solution of the former, 8. the connectionist network from physical data to psychological processes, 9. the network between psychological processes, 10. the network from psychological processes to physical or verbal operations, and 11. the functions of the System Level, et al. In conclusion, the Five-Aggregate Model is not only a systemic description of human mental processes, but also a framework that can be introduced into the area of artificial intelligence studies, which may reunite Psychology with AI research.