Abstract:Circadian rhythm system affect a variety of physiological and phathological processes like homeostasis, metabolism, sleep-wake and the occurrence and treatment of cancer. Futhermore, the regulatory mechanisms for the circadian rhythm are one of the hottest areas in biological research. As a new world of biological research, the relationship between the non-coding RNA (ncRNA) and circadian rhythm system has become one of the most promising research projects in the field of chronobiology. In this review, we will summarize our current knowledge about the interaction between the ncRNA and circadian rhythm system, then pay close attention to the members of ncRNA and the mechanisms in this field.