To analyze and draw the scientific knowledge map of acupuncture for treating insomnia in search of frontiers and hotspots in this field. Methods: First, the articles on acupuncture for insomnia in CNKI were retrieved. Next, Origin software was used to analyze the trend in the annual publication of literature. Finally, CiteSpace software was used to analyze and map out the keyword co-occurrence network, author collaboration network, and institutional collaboration network. Results: As of September 8, 2019, from 1999 to 2019, a total of 1 165 research records on acupuncture for insomnia were confirmed. The number of annual publications had gradually increased and stabilized. A total of 167 keywords were included in the keyword co-occurrence network, 27 of which appeared more than 15 times. A total of 81 authors were included in the author collaboration network, 14 of whom authored more than 3 articles. A total of 43 institutions were included in the institutional collaboration network, 11 of which contributed more than 3 articles. Conclusion: Acupuncture is an effective treatment for insomnia.