关键词: 国家建设 , 政体 , “十字结构&rdquo, 总统制—议会制 , 单一制—联邦制

Abstract: “Restatement” of the ancient knowledge on political study with a different perspective will be a new revelationOld Institutionalism,featured as structural,legalism and static,which deals with major political system problem,is worth reflection by perspective of stateconstruction“Crossstructure”regime theory consists of the horizontal dimension of political regime known as presidential system and parliamentary system and the vertical dimension,namely unitary system and federal systemIts not only significant as a watershed in political science history but also the product of modern state construction when it was confronted with fundamental challengesUnderstanding some key concepts of political theory from perspective of state constructon will bring an important theoretial breakthrough  

Key words: state construction , regime theory , “cross structure” , presidential system and parliamentary system , unitary system and federal system