Abstract: In order to investigate the occurrence characteristics and the hazards on Citrus reticulate‘Unshiu’×hassaku pests and diseases in Qingyuan county, fixed spots investigations,random sample surveys and black light lure were made on C. reticulate‘Unshiu’× hassaku pests and diseases in different C. reticulate‘Unshiu’× hassaku planting areas and the distribution of C. reticulate‘Unshiu’× hassaku pests and diseases .The Survey results that 20 species of C. reticulate‘Unshiu’× hassaku diseases and 27 species of pests were collected and identified in C. reticulate‘Unshiu’× hassakuproducing areas in Qingyuan country .The findings provide effective data support for further studying and controlling C. reticulate‘Unshiu’× hassakupests and diseases, and provide a theoretical guarantee for the sustainable and healthy development of the C. reticulate‘Unshiu’× hassakuindustry.