The article is an attempt to systematize views on the subject of history of philosophy. Starting point of the analysis are the conceptions occurring in the post-Kantian philosophy, where significant differences in understanding the history of philosophy reveals themselves. History of philosophy may be understood as doxography, as a history of concepts, as history of idea, as a history of problems or, finally, as a philosophical history of philosophy. Author presents main assumptions of each of before mentioned approaches, pointing to the special value of history of philosophy treated as a history of problems and philosophical history of philosophy. Additionally author appeals to Polish researchers of that problem being Kazimierz Twar...