目的：观察安泰胶囊（Ａｎｔａｉｃａｐｓｕｌｅ）对移植性人胃癌（ＳＧＣ７９０１）、食管癌（Ｅｃａ１０９）、肺癌（ＳＰＣＡ１）和动物肉瘤（Ｓ１８０）的抑制作用及对人肝癌ＳＭＭＣ７７２１细胞ＲＮＡ合成的影响．方法：采用荷瘤技术和同位素参入法结果：ｉｇ１００，２００，４００ｍｇ·ｋｇ－１Ａｎｔａｉ，对ＳＧＣ７９０１的抑制率分别为３１５％，４７７％，５１９％；ＳＰＣＡ１为２２６％，３９５％，４９２％；Ｅｃａ１０９为２１９％，３４２％，４６０％与对照组相差非常显著．同时，Ａｎｔａｉ对ＳＭＭＣ７７２１细胞ＲＮＡ合成具有明显的抑制作用结论：Ａｎｔａｉ对ＳＧＣ７９０１，Ｅｃａ１０９，ＳＰＣＡ１和Ｓ１８０移植瘤的生长具有明显的抑制作用，其作用机理可能与Ａｎｔａｉ对肿瘤细胞ＲＮＡ合成的抑制作用有关 Objective: To observe the inhibitory effect of Antai capsule on transplanted human gastric cancer (SGC7901), esophageal cancer (Eca109), lung cancer (SPCA1) and animal sarcoma (S180) and its effect on RNA synthesis of human hepatoma SMMC7721 cells . Methods: Using tumor-bearing technique and isotope method, the results were as follows: ig 100,200,400 mg·kg-1 Antai, the inhibitory rates of SGC7901 were 315%, 477%, 519%, respectively; SPCA1 It was 226%, 395%, 492%; Eca109 was 219%, 342%, 460%. The difference between the control group and the control group was very significant. At the same time, Antai has obvious inhibitory effect on RNA synthesis of SMMC7721 cells. Conclusion: Antai has obvious inhibitory effect on the growth of SGC7901, Eca109, SPCA1 and S180 tumors, and its mechanism may be related to RNA synthesis of tumor cells by Antai. The inhibitory effect of