Abstract  [Objectives]  To study the effects of different slow-release carriers on the release rate of plant volatiles, in order to provide technical support for the selection of appropriate release carriers for the research of related insect attractants, so as to achieve the best trapping effect and longer duration. [Methods]  The release rate and duration of α-pinene and cis-3-hexenol in LDPE bottles and LDPE bags with different specifications were measured by weighing method under outdoor conditions. [Results]  The release rate test of LDPE bottles showed that there were significant differences in the release rates of plant volatiles between different sizes of LDPE bottles and different doses. The average daily release rate of 15 mL LDPE bottle +15 mL α-pinene within 16 days was the lowest, which was (268.3±70.3) mg·d^－1, significantly lower than (580.0±119.5) mg·d^－1 of 100 mL LDPE bottle +15 mL α-pinene and (913.3±133.8) mg·d^－1 of 100 mL LDPE bottle +50 mL α-pinene. The duration of 100 mL LDPE bottle +15 mL α-pinene combination is about 16 days, while the duration of 15 mL LDPE bottle +15 mL α-pinene combination and 100 mL LDPE bottle+50 mL α-pinene combination can reach more than 50 days. The release rate test of LDPE bag showed that, The average daily release rate of 2 mL cis-3-hexenol in 0.02 mm LDPE bag within 12 days was the highest, which was (110.7±28.0) mg·d^－1, significantly higher than that of other thickness LDPE bags; The daily average release rate of 2 mL cis-3-hexenol in 0.06, 0.08, 0.10 and 0.16 mm LDPE bags were (48.3±14.4), (42.0±11.5), (36.3±14.4) and (31.0±7.9) mg·d^－1, with no significant difference; The duration of 2 mL cis-3-hexenol in 0.02 mm LDPE bag is about 16 days, while the release rate on 0.06-0.16 mm LDPE bags is relatively stable, and the duration can reach 50-60 days. [Conclusion]  The test results show that the release rate can be accurately controlled by using different volumes, different thicknesses of slow-release carriers and different doses of plant volatiles to meet the needs of different insect attractants. The conclusion of this study can provide some reference for the selection of slow-release carriers of insect attractants in production, and provide technical support for insect pest monitoring and pest control.