Literature is valuable source for learning information and skills and achieving knowledge about the person himself, others and phenomena of the universe. Meanwhile didactic type is the most important and basic literary genre in literature history of Iran which has been common since formation of Persian literature. The aim of this thesis is not only reminding functions of literature in contemporary era via descriptive-analytical method, but also studying the didactic literature with respect to its function and expressing the features of training via literature. Finally it shows that this type is extended by form, contents and type. This research may shows the position of didactic literature as a art and cultural phenomena in literature work pieces and determine what are these genres for. This research also shows didactic literature has cognitive, verbal, skills and cultural functions and can be seen in various fields such as Children, Public and Internet literature, also in forms of novel, short story, minimalist story, script, drama, weblog and even song. The difference is that in this era, moral, political, social, legal and etc. concepts are implicit and indirect, especially in story literature that teaching concepts is indirect via showing situations and characters.