The incidence of gynaecological tumours, the main factor threatening women ’s health and safety, is increasing with the daily heavier pressure of women’s life and work; Due to its serious threat to women, the disease has grasped increasingly more vigilance and attention. The discovery and research of micro ribonucleic acid (microRNA), a general term for a class of small-molecule RNA, showed that there was a close relationship between microRNA and the occurrence and development of gynaecological tumours. In this paper, based on the recent researches on the relationship between microRNA and gynaecological tumours, a comprehensive analysis was made to do a favour for scientific research and clinical treatment of gynaecological tumours.