Objective To explore the medication rules of different traditional Chinese medicine(TCM) gynecology schools on uterine bleeding based on data mining. Methods The prescriptions for uterine bleeding in different gynecology schools were collected. Frequency analysis was conducted to find core herbs and meridian tropism of herbs was counted. Association rule analysis and cluster analysis were used to find the medication rules of core herbs. Results A total of 27 prescriptions were included, involving 110 herbs. There were 23 core herbs, which mainly belonged to liver, kidney, spleen and heart meridians. The top five herbs were Paeoniae Radix Alba, Rehmanniae Radix, Angelicae Sinensis Radix, Rehmanniae Radix Praeparata and Asini Corii Colla. 28 combinations were obtained by association rule analysis, among which moutan cortex and Rehmanniae Radix were commonly used. 7 classifications were obtained by cluster analysis. Conclusion The gynecology schools apply various hemostasis methods flexibly to treat uterine bleeding without forgetting to protect Yin blood.