Natural enemy resources in citrus orchards, Guangdong provinces, are abundances. Conservation and use of natural enemies have become a major strategy to reduce pesticide application in planting citrus. Phytoseiid mites are the most common natural enemies in citrus orchards. They are significantly efficient in controlling pest mites and small insect pests on citrus. Clarifying species and population dynamics of phytoseiid mites on citrus will provide important references to research on conservation and utilization of them. Citron-Lemon, Ehime Kashi No. 28, and Shatangju are different species of citrus. Citron-Lemon, the local speciality fruit of Guangdong, Ehime Kashi No. 28, newly introduced to Guangdong in recent years, and Shatangju which is widely planted in Guangdong Province, have wide market prospect. In the present study, we surveyed and collected phytoseiid mites on different citrus cultivars, and made slide specimens. We obtained key feature data and population dynamics data of different phytoseiid species, which provide information that guides future studies on product development and application of dominant species. Studies on impact of habitat, cultivation measures and pests management on changing of dominant species also provide data that support natural control strategy screening in citrus orchards.