Philosophy of Rene Guenon, despite not being known to general public and remaining understudied by academic community, is one of the most interesting intellectual events of 20th century. The attempt to classify and define the philosophy of Rene Guenon is presented in the article. In author’s point of view, it is important for scientific study of Guenon’s philosophy. For the exact definition of Guenon’s philosophy author suggests the term “philosophical esoterism”, which marks the philosophical character of Guenon’s works as its main feature and places it in the field of esoterism.