In order to study the scientific research intensity, spatiotemporal characteristics and future trends of global polyhydroxyalkanoate (PHA) research, based on the bibliometric visual analysis software CiteSpace, the Web of Science (WoS) database was used as the data source to summarize and analyze the research cooperation of scholars from 2013 to 2022. The results show that from 2013 to 2022, the degree of scientific research cooperation of polyhydroxyalkanoate research is relatively low, the global cooperation is relatively loose, and the cooperative relationship has obvious individual, institutional and geographical orientation, while the cooperative relationship shows the characteristics of “cooperation between powerful institutions”, and the cooperative institutions are mainly universities, among which the number of strong research institutions is relatively high. The countries with the largest number of publications are China, India, the United States, Italy and Spain. Although the number of publications in the United States is high, the number of researchers is small, and the results are basically concentrated in some high-yield researchers. In the future, researchers should not only pay attention to inter-regional cooperation, but also pay attention to interdisciplinary cooperation, which can increase the driving force of research across regions and disciplines.