OBJECTIVE：To provide reference for improving safe drug use in pregnant women. METHODS ：Retrieved from as domestic and foreign literature retrieval platforms as CNKI and Web of Science ，the literatures about drug use in pregnancy period were collected and analyzed by using the literature analysis function provided by the retrieval platform and CiteSpace 5.5R2 software. The collected data of annual volume ，author，organization，keyword co-occurrence and literature co-citation analysis of domestic and foreign literatures are visualized ，and the research focus was analyzed. RESULTS ：A total of 38 946 foreign literatures and 698 domestic literatures were included ，and domestic literatures were less than foreign literatures ；the literature volume on pregnancy drug use were increasing year by year at abroad，but the volume of domestic literatures fluctuates greatly and increased slowly. Foreign institutions and scholars worked closely together ，and built a close cooperation network ，especially in the United States. However ，the author team of domestic research was relatively scattered as a whole ，and the cooperation between researchers was less ，so a large cooperation team had not yet been formed. The most frequently cited literatures in the world were randomized controlled studies and large-scale cohort studies，the keyword “Risk”appears most frequently ，indicating that it focuses on the effects of pregnancy medication on pregnancy outcomes and offspring. The effects of antiepileptic drugs ，antidepressants and opioids used in pregnancy on pregnancy outcomes and child development were currently a research hotspot abroad. However ，there was a lack of large-scale sample and high-quality clinical research in China ，high-frequently keywords in domestic literatures indude “fetus”“hypertension in pregnancy ”etc.，which focused on the treatment of combined diseases in pregnancy and paid little attention to the long-term effects of medication in pregnancy. CONCLUSIONS：More and more attention had been paid to the study of drug use in pregnancy period. Domestic research needs to seize the international cooperation communication ，learns from the excellent experience of foreign research team ，and establishes domestic specific pregnancy medication research team. Relevant departments should introduce measures as soon as possible ，support medical institutions and drug production and developmententerprises to do a good job in the registration of pregnancy medication，establish the database of pregnancy medication inChina as soon as possible ，and improve the medication safety of pregnant patients.