The study of trends of memoirs, as the first generation of the history of Persian literature with a critical approach and with the aim of the formation, transformation and transformation, the origins of memoirs and their historical period and their ups and downs throughout literary history. It can be claimed that plagues such as superficiality, rhetoric, summary writing, love and hate have found their way into a number of them. The pathology textology of memoirs requires the use of "critical thinking", ability to achieve purposeful, accurate and scientific evaluation of memoirs provides analytical thinking and presentation of scientific theories, promoted the knowledge of literary theorizing, classification and classification of the history of literature, and removed literature from ethnic, ideological and political prejudices. In this research, the statistical society of which is four memoirs to 10th AH(Chahar maghaleh, Lobabol albab, Nafahatol ons, Tazkharatol shoarah),includes, in the context of the trends actual elements in each era, as well as describe and explain the various approaches to memoirs, tradition-breaking and innovation motives; We also try to use analytical-descriptive method to understand the classification, discover the relationships between the notes, their effects and effects, and especially the role of internal and external elements in the evolution of note. The aim of this article is only to plan the pathology of literary biographies through critical thinking in a number of biographies of the 10th AH, and it is obvious that the delay in the pathology of the found pests requires other opportunities.