Ascaris lumbricoides were: the fastest mortality of Ascaris lumbricoides was in dekok pinang seed consentration 100% and the longest by salin. By Anova test showed that there was
difference mean of Ascaris lumbricoides mortality among the groups of treatment ( P<0.01). By Ganda tukey test showed that the concentration of dekok pinang seed 25%, 50%, 75%, 100%, was significant. By CorelationRegression test and the correlation coefficient ( R = 0.987) showed strong relation ( p) < 0,05 between concentration of dekok pinang seed with the worm mortality, the higher there was of concentration of dekok pinang seed will excess the mortality worm . The conclusion was dekok pinang seed have antihelmentic effect to Ascaris