Cancer-related fatigue (CRF) is a distressing, persistent, subjective sense of physical, emotional, and/or cognitive tiredness or exhaustion related to cancer or cancer treatment that is not proportional to recent activity and interferes with usual functioning. It exerts deleterious effects on many aspects of the body, including physical, social, cognitive, and vocational functioning, and makes the patients or their relatives feel emotional and spiritual distress. Nevertheless, it is still under the way of diagnosis and treatment. Based on the National Comprehensive Cancer Network (NCCN) Clinical Guidelines in Oncology-CRF (version 1. 2016), standards of care for CRF assessment and management, standards for evaluation and treatment and interventions for patients on active treatment were critically interpreted in this article.