To explore the rules of acupoints selection of acupoint catgut embedding for polycystic ovarian syndrome based on data mining. Methods:Based on a comprehensive retrieval of the literature on acupoint catgut embedding treatment for PCOS, a database of acupuncture prescriptions was established, SPSS and SPSS Modeler were used to perform descriptive analysis, cluster analysis and association rule analysis, to explore the characteristics and rules of acupoint selection of acupoint catgut embedding for PCOS. Results:A total of 59 literature were included, 56 acupoints were selected, and the total frequency of acupoints selection was 576 times. Conclusion:Acupoint selection of acupoint catgut embedding for PCOS has certain rules:the acupoints on the bladder meridian, stomach meridian, and conception vessel are mostly used, and the selected acupoints are mainly specific acupoints, back-shu and front-mu point combination were emphasized; guānyuán(CV4) and tiānshū(S25) are the main acupoints for the treatment of PCOS.