[Objectives]  To identify the chemical signals that attract two species of wasps Apanteles chilonis Munakata and Anagrus nilaparvatae Pang et Wang that parasitize insect pests of rice and thereby provide basic information for further study of the attractants of parasitic wasps. [Methods]  The olfactory responses of adult wasps to to eleven rice plant volatiles were tested in a Y-type olfactometer. [Results]  A. chilonis was significantly attracted to 10 and 50 μg/kg of β-caryophyllene，0.1, 1 and 10 μg/kg of ocimene, and 10 μg/kg of 2-nonyl ketone. A. nilaparvatae was significantly attracted to 50 μg/kg of trans-3-propyalacrolein, 1, 10 and 50 μg/kg of anti-3-hexene aldehyde, 0.1, 1 and 10 μg/kg of linalool, 0.1 or 50 μg/kg of β-caryophyllene, 1 μg/kg of ocimene, 1 μg/kg of α-pinene, and 0.1, 1, 10 and 50 μg/kg of methyl salicylate. [Conclusion]  A. chilonis and A. nilaparvatae are strongly attracted by several rice plant volatiles over a broad range of concentrations. Future study of potential attractants of parasitoid wasps should therefore consider both the type and concentration of plant volatiles.