Language is a great social phenomenon that is inevitable for communication. Over time, audiences, based on the capabilities and facilities that language provides them, have introduced new words and phrases for more effective communication. If these words meet the needs of the audience in different periods, they continue to thrive. If, for any reason, they do not receive attention, they become secluded and make way for other words. This cycle always occurs over time in every language. Cultural writing is a thought-provoking concept related to this social phenomenon. On the one hand, it serves as a means to preserve and sustain words and phrases from the ravages of time. On the other hand, it becomes a practical resource for various audiences. Literature of sustainability is a relatively new literary genre in Persian literature with extensive research potential. The research methodology in this article is foundational, carried out in a descriptive-analytical manner and based on library research. The authors of this article delve into the important topic of cultural writing in literature of sustainability and explain its necessity and applications. As a result, during the study of various texts, many rare and valuable words were discovered that have not appeared in any culture before.