In order to prove the experimental effectiveness of ChongsimOndamTang <COT> by categotizing COTⅠ, COTIⅡ, COTⅢ and COTⅣ according to the volume of COT extract,the anticonvulsion action, the antipyretic action, the analgesic action,the sedative action, and the activity of GABA transaminase, the actuvity concentration of GABA,the activity of GAD in GABAergic system comparing data with control group and observation data show the results as follows.1. The anticonvulsion effect on the convulsion induced by strychine it was significantly effective in COTⅣ and the time to death after the occurrence of the convulsion it was significantly effective in COTⅢ and COTⅣ, and the time to death after the occurrence the convulsion induced by the electrical shock of ECT unit it was significantly effective in all sample groups.2. The hypothemic effect was significantly effective in COT Ⅲ after 1 hour and 2 hour and was significantly effective COTⅣafter 1 hour and 4 hour, and the antipyretic effect on the febrile induced by endotoxin it was significantly effective in COTⅢ every 3 hour and was significantly effective in COTⅣ after 3 hour and 4 hour.3. The analgesic effect was significantly effective in COTⅢ and COTⅣ by decreasing the number of writhing syndrome.4. The sedative effect was decreased significantly all in COTⅢ and COTⅣ after 60 min, 90 min and 120 min.5. The activity of GABA transaminase was decreased significantly in COTⅡ and COTⅢ. 6. The activity concrntration of GABA was increased signifivantly in COTⅡ and COTⅢ. 7. The activity of GAD was increased significantly in COTⅡ and COTⅢ. The results show that ChongsimOndamTang can be an effective cure in mice on the anticonvulsion,the antipyretic , the analgesic,the sedative and the control of the GABAergic system in brain, and it can be used of the epilepsy and convulsive diseases clinically.