[Background] Guangdong Province is highly affected by alien insect invasion. This biological disaster is becoming increasingly serious in China.[Method] Species, origin, first detection locations, and geographic distribution patterns of alien invasive insects in Guangdong Province were summarized and analyzed through field surveys and literature review.[Result] According to the statistics, a total of 30 alien invasive insect species causing some damage were found in Guangdong Province. Scale insects accounting for 30.00% represented the largest proportion of invasive insect species. Of the alien invasive insects in Guangdong Province, 40.00% originated from Asia, of which 8 species were from ASEAN. There were 20.00% coming from North America, 16.67% from South America, 10.00% from Africa, and only 3.33% from Europe and Oceania. Most alien invasive insects (56.67%) were first found in the Pearl River Delta of Guangdong Province, 20.00% in Hainan Province, 10.00% in Yunnan Province, and only 3.33% in Guangxi Zhuang Autonomous Region, Beijing City and Shanghai City. The geographic distribution patterns in Guangdong Province significantly varied among alien invasive insects. Most of alien invasive insects were observed in the Pearl River Delta, followed by the western Guangdong Province. The least numbers of alien invasive insect were observed in northern and eastern Guangdong Province.[Conclusion and significance] The current status and geographic distribution patterns of alien invasive insects in Guangdong Province support the need for monitoring and control strategies.