Diaphorina citri is an important insect vector of Citrus huanglongbing. There currently is no effective drug and resistant varieties for Citrus huanglongbing. It is important to strengthen the prevention and treatment of D. citri for the controlling of Citrus huanglongbing epidemic. At present, chemical control methods are frequently used in the prevention and treatment of D. citri. Frequent use of pesticides leads to pesticide residues, environmental pollution, destruction of biodiversity, and pest resistance. Biological controls with high efficiency, low toxicity, low residue, and low resistance development are being gradually introduced. Entomopathogenic fungi can invade the host body, resulting in death of the insect. They have high potential spreading capacity and convenient to apply. This article reviews the entomopathogenic fungal species used for the biological control of D. citri, with a focus on the domestic and international applications of Beauveria bassiana, Isaria fumosorosea, Purpureocillium lilacinum, Paecilanyces varioti, Lecanicillium lecanii. It looks at the future prospect for the development of biological control of D. citri in order to provide reference for Citrus huanglongbing prevention and control.