Objectives: This article intends to answer to this central question: what is the logic of attaining the fundamental principles of Islamic Humanities? Hence, explaining the process and the quality of attaining the fundamental principles of Islamic Humanities is the aim of this article. Method: For data collection, library research method is adopted and for surveying the information, the meta-analysis and philosophical analysis is employed.Results: The results of the research indicate that provided by the central problem and the aim of this article, the quality and the process of attaining the fundamental principles of Islamic Humanities is going to be studied, then the premises (Al-Mabadi) and based on this process, the fundamental principles (Al-Mabani) will be dealt with. The first step in the process of accurate semantics of the fundamental principles. Hence, producing a conceptual and semantic delimitation between premises and fundamental principles as well as presenting a clear definition of the fundamental principles, it will be described that it is not possible to explain the fundamental principles without regarding the position, subject matter and goal of Islamic Humanities.Conclusion: The author of the research concludes for identifying the position, Humanities is positioned in the category of practical and conventional disciplines, and the common subject matter of such disciplines is personal and social demands. Hence, the fundamental principle of seeking the propositions which its subject matter and genre is directly and immediately dependent to that. Regarding this point, the ontological, anthropological, epistemological propositions should be regarded, not as the fundamental principles of Humanities but as the premises and the principles dominating over the fundamental principles.