目的：比较芳香化湿药挥发油与水溶液作用的差异。方法：将８味芳香化湿药的挥发油部分与水溶液部分灌胃大鼠，观察对动物胃液分泌、胃粘膜血流量（ＧＭＢＦ）、胃泌素及胃粘膜氧自由基活性的影响。结果与结论：８味药物挥发油部分对上述指标的影响在总体上与水溶液的作用基本相当。部分挥发油获取率较高的药物，其挥发油部分在增加胃液分泌及ＧＭＢＦ方面的作用较水溶液更明显。 OBJECTIVE: To compare the difference of the action of the volatile oil and the aqueous solution of aromatherapy wet medicine. Methods: The volatile oil fraction and aqueous solution of 8-flavor aromatising lotion were instilled into rats to observe the effects on the secretion of gastric juice, gastric mucosal blood flow (GMBF), gastrin and gastric mucosal oxygen free radicals. RESULTS AND CONCLUSION: The effect of the eight volatile oils on the above indexes is basically the same as that of the aqueous solution. Part of the volatile oil access rate of higher drugs, the volatile oil part of the increase in gastric secretion and GMBF aspects of the role than aqueous solution is more obvious.