[Objectives]  To provide a theoretical and practical basis for developing effective ecological control methods for Bradysia odoriphaga, the main insect pest of Chinese chives. [Methods]  The preferences of 3^rd instar larvae for several host plant species were tested in a “Y” tube olfactometer, and the behavioral responses of females to different host plant volatiles were tested in a four-arm olfactometer. [Results]  The results of the “Y” tube olfactometer test showed that larvae were significantly attracted by intact Chinese chives, oyster mushrooms and spring onions. Females were most attracted to mechanically damaged Chinese chives and humus. [Conclusion]  The results of this study provide some valuable insights for the development of botanical pheromones for the control of Bradysia odoriphaga.