Objective Analysis of point selection rule of postpartum hypogalactia treated by acupuncture based on Data Mining Technology. Methods All the literatures of postpartum hypogalactia treated by acupuncture between Aug.1959 and Feb. 2019 in six databases (CNKI, Wanfang, CBM, Pubmed, Medline and Embase) were included. Data mining technology was used to analyze the point selection rule. Results 110 literatures which cover 72 points were included. The total frequency of points involved were 865. The frequent use of acupoints are CV17, ST18 and SI1. They are concentrated in stomach channel of Foot-yangming and Ren Meridian. The frequency of pectoral and abdominal acupuncture points is the highest. The application frequency of Five-shu Points is the highest in all the specific points. Conclusion The commonly used acupoints in treatment of postpartum lactation are CV17, ST18 and SI1. The main selection of acupoints on the local area is the chest and abdomen. The meridians most commonly used is stomach channel of Foot-yangming and Ren Meridian, Five-shu Points and Front-mu points should be given attention in the clinical.