Background and Objective: The concept of chronic pain is a significant nursing notion for which there are various definitions and patterns mentioned in texts. Thus, this survey was carried out to analyze the concept of chronic pain with respect to more clarifications on this concept in nursing with an evolutional approach. Materials and Methods: In the present study, Rodgers evolutional method for concept analysis was used. The sources where the required data for analysis was obtained were Nursing Index, ProQuest, and Ovid databases. The criteria for entering these databases were English texts published from 1995 to 2016 years. The keywords used for searching in titles were acute pain, interact abele, trauma pain, non-cancer pain. Results: In this study, the features of chronic pain were identified as being long, killing, and having visceral nervous roots. The symptoms for this pain are characterized as hurting, acute pain, and passing the acute pain. Its aftermaths consist of physical and psychological disorders, economic problems and lack of appropriate welfare in life. Conclusion: According to the findings of the present study, it is possible to present a theoretical definition for chronic pain concept. The results may help other researchers in developing a model and theory related to this topic by illuminating the chronic pain concept and regarding the fact that theories are building blocks for formulating theories. © 2019 by the authors; licensee Modestum Ltd., UK.