A use of wormwood extract for inhibiting lung cancer cells, wherein the wormwood extract is extracted from Artemisia argyi, and the extraction process of the wormwood extract includes the following steps: first, a crude extraction step, The dried whole grass of Artemisia argyi was soaked in ethanol to obtain a crude extract； a liquid-phase extraction step was performed, and the crude extract was placed in an extraction solvent composed of ethyl acetate / water to perform a distribution procedure to obtain an extract. Next, a purification step is performed, the extract is passed through a silica gel column to obtain a purification solution, and the purification solution is divided into 11 parts for purification and separation, and the 11 parts for purification and separation are given a number according to the collection time sequence； among them, wormwood The extract includes the purified separation No. 3 in 11 purified separations, and the purified separation No. 3 includes the compound capillene, and its structural formula is: .一種艾草萃取物用於抑制肺癌細胞的用途，其中艾草萃取物係由艾蒿(Artemisia argyi)萃取而得，且此艾草萃取物的萃取過程包括下述步驟：先進行粗萃取步驟，以乙醇浸泡艾蒿的乾燥全草，獲得粗萃取物；再進行液相萃取步驟，將粗萃取物置入由乙酸乙酯/水所組成的萃取溶劑中進行分配程序以獲得萃取液。接著，進行純化步驟，使萃取液通過矽膠管柱層以獲得純化液，並將純化液區分為11份純化分液，且依照收集時間先後順序分別給予11份純化分液一個編號；其中艾草萃取物包括11份純化分液中的第3號純化分液，且第3號純化分液包括化合物capillene，其結構式為： 。
