To explore the characteristics of acupoints use，regularity of acupoints selection and characteristics of prescriptions of Professor WANG Leting's treatment of liver pain.Methods:Excel 2016 was used to establish the acupoint database for the treatment of liver pain by Professor WANG Leting，and R language was used as a tool for frequency analysis，association rule analysis and cluster analysis.Results:Professor WANG Leting used 51 acupoints in the treatment of pain in the liver area，with a total frequency of 577 times.The most frequently used acupoints were Hegu(LI4)，Ganshu(B18)，Zusanli(S36)，Pishu(B20)and Quchi(LI11).The most frequently used meridians were：Zu Tai Yang bladder meridian，followed by Yangming Large Intestine Channel of Hand and Zu Yang Ming stomach meridian.The number of specific acupoints used was 34，accounting for 65.38% of the total number of meridians and acupoints，and the total frequency of use was 729.The number and frequency of acupoints used at the crossing point was the highest，followed by the Back-shu point，Wushu acupoints and the Front-mu point.The results of the association rules showed that for the treatment of pain in the liver area，the highest correlation degree of acupoints was Ganshu(B18)=>Pishu(B20).The clustering results showed that there were 4 types of acupoint combinations.Conclusion:This study clinically summarizes the characteristics of the prescription，cubic thinking，and acupoint combination of Professor WANG Leting's treatment of liver pain; In the research method，the R language is first introduced as a tool，which broadens the data mining ideas used in acupuncture prescriptions.It is of great significance and broad application prospects for sorting out academic thoughts，the the inheritance and innovation of the deceased famous old Chinese doctors.