Miridae pests including Adelphocoris suturalis and Apolygus lucorum have a wide range of hosts which are important cash crops such as cotton,jujube,and kidney bean. Due to the extensive planting of transgenic cotton,the population of Miridae pests increased significantly since the 1990s,which had a serious impact on Chinese agricultural production. Controlling these pests by chemical pesticides now faced with many disadvantages because of their pesticide resistance and strong dispersal ability. In order to obtain a new efficient and environmentfriendly control method using botanical attractants for the main Miridae pests,Apolygus lucorumand Adelphocoris suturalis,in the cotton field,ethanol extracts from the seeds of Allium tuberosum and Helianthus annuus were prepared by soaking at room temperature. Three-arm olfactometer was used to compare the olfactory responses of A. lucorum to two extracts and cotton leaves. The results showed that the response rate (56.04%±3.77%) of A. lucorum to the extract of A. tuberosumwas the highest,which was significantly higher than that of H. annuus and cotton leaves. When the seed extracts of A. tuberosum and H. annuus were mixed according to the volume ratio of 3∶7,they had synergistic effect and showed strong attraction to both A. lucorum and A.suturalis,with selective response rates above 80%. The results showed that the mixed attractant had intrinsic value in controlling the Miridae pests in cotton field.