Dendrolimus punctatus（Walker）(Lepidoptera: Lasiocampidae) is the primary insect pest of pine forests in China. Blepharipa zebina (Walker) (Diptera: Tachinidae) is the important natural enemy of the pine caterpillars. The volatiles form the Pinus massoniana damaged by Dendrolimus punctatus were collected with the method of dynamic headspace absorption. And they were identified using the gas chromatographic-mass spectrometry（GC-MS）and the standard samples. The results showed that there were 4 different chemical classes in the volatiles compounds including the general green volatiles, hydrocarbon monoterpenes, oxygenated monoterpenes and sesquiterpenoids. Hydrocarbon monoterpenes had the largest quantity and other chemical classes had the small quantity in the volatiles compounds. Antennal olfactory responses of female B. zebina to 23 pine volatiles compounds were measured by electroantennogram (EAG) techniques.The results showed that no significant differences were found in the antennal olfactory responses of female B. zebina to β-pinene, α-pinene, longifolene, camphene, bornyl acetate and humidity air. But there were significant difference between other compounds and humidity air. Such as cis-3-hexen-1-ol, cis-3-hexenyl acetate, 1-octen-3-ol, 3-octanol, linalool, limonene, they all could elicit high EAG responses. Dose-response of B. zebina to serial stimulus loads (0.1，1，10，100，1000μg/μl) of 8 standard chemicals and the threshold were also measured and analyzed. Dose-response curves constructed from EAGs revealed a low threshold (0.1μg/μl) for cis-3-Hexen-1-ol and linalool, a moderate threshold (1μg/μl) for nonanal and a high threshold (100μg/μl) for Limonene, α-phellandrene, 2,6-dimethyl-2,4,6-octatrien and β-caryophyllene. There is no threshold for α-pinene in the serial stimulus loads. The role of pine volatiles in host habitat location of tachinid fly was discussed.