An artificial feeding method at low altitude for a host insect ghost moth of Ophiocordyceps sinensis including selecting an appropriate disinfectant for performing surface disinfection on ghost moth eggs, and then placing the disinfected eggs in sterile humus； feeding ghost moth larvae with carrots, disinfecting and detecting the fed carrots, and culturing the larvae till male and female pupae are obtained； identifying male and female pupae of the ghost moths, placing them at different culture temperatures, wherein the culture temperature for the male pupae is 2-6° C. lower than that of the female pupae, resulting synchronously emerged male and female adults； placing the emerged male and female adults in an adult cage with simulated plants for mating and staying of the adults, maintaining a humidity over 80%, and employing 50-100 Lux shimmer for facilitating activity and mating of the adults.
