The purpose of the investigation was to assess the success of women extension help-agent in Isfahan province, Iran and to assess the factor affect of their success. Isfahan province contains of 21 town city of which 14 were selected for this study. The selection was on the basis of statified sampling. The observation included 156 extension help-agent and 266 rural women that were selected on random basis using Cokran formula. Method of analysis included cross Tabulation, Chi-square, coefficient of correlation, independent-samples T-Test, Kruskal-Wallis Test, Factor analysis and Regrasion. The results showed that from extension help-agent, point of view, the success of the agent were as fallows 43 percent under average ,50 percent around the average and 6.5 percent higher than average. From rural women point of view s, the success of the extension help-agent were: 58 percent under average, 27 percent around average and 15 percent higher than average. The result also showed that the factors affecting the success of the agent were: familiarity with problem in their area of activity, solve problem in their area of activity, participation level in extension-education activities, reaction worthy rural producing. Economic situation, person job,luency in speaking, technical information, need assessment method orientation, career, existence of library in village, confidence rural woman to extension help-agent, Traint, use woman from media, group activity. Like wise such factors as: agents participation in decision., making process for their organization, their level of education, indigening, membership extension help-agent and family in association, number of household, acquaintance with area. Trend field, age, distance village to rural district, rural population, existence of publication in village did not have effect on their success. Regration result show that the more effective factors on the success of some help-agent point of view were the rural participation activities, economic situation and regular education and the rural women poit of view were acquaintance of need assessment and participation of women in extension-education activities.