[方法]研究了丙环唑在大豆中的残留分析方法。样品用乙腈提取,弗罗里硅土净化,采用DB-5ms毛细管色谱柱气相色谱-电子捕获检测器法进行测定。[结果]在该条件下,其最小检出质量分数为0.02 mg/kg,平均添加回收率为85.5%~108.2%,相对标准偏差为4.9%~18.4%。[结论]建立了一套快速、简便、灵敏的大豆中丙环唑残留气相色谱检测方法。 [Method] The residue analysis method of propiconazole in soybean was studied. The samples were extracted with acetonitrile and purified with Florisil, and determined by DB-5ms capillary column gas chromatography-electron capture detector method. [Result] Under this condition, the minimum detectable mass fraction was 0.02 mg / kg, the average recovery was 85.5% -108.2% and the relative standard deviation was 4.9% ~ 18.4%. [Conclusion] A rapid, simple and sensitive method for the determination of propiconazole residues in soybean by gas chromatography was established.