In the context of the rapid development of artificial intelligence technology, this article provides a systematic review of public relations research in the context of artificial intelligence to provide valuable references for future public relations research and practice. Collect literature data from CNKI, use systematic review methods to select literature that meets the standards, and sort and summarize it from four dimensions: application background, application scenarios, challenges faced, and response measures. Research has found that currently, applying artificial intelligence technology to public relations practice has become a basic consensus in academia; The paradigm of public relations research in the era of artificial intelligence has changed; In the short term, artificial intelligence technology will not completely replace public relations personnel; The measures for responding to public relations in the era of artificial intelligence can be summarized and divided into two levels: theoretical and practical. In the future, it is necessary to further explore and improve public relations theories related to artificial intelligence, construct new analytical frameworks and research methods to adapt to the changes brought about by technology.