The research aims mainly to develop a quantitative scale of the level of rural woman developmental contribution in some villages of Kafr El-Sheikh governorate so as to have an acceptable Validity and Reliability. The scale was applied on random samples of 380 respondents. The findings showed that the final shape of the scale consists of 100 statements demonstrating a high degree of Validity and Reliability. Furthermore, the results assured a high level of apparent Reliability of the scale, as it was found that the rates of arbitrators agreeing on the scale phrases ranged between 66.6% and 100% with an average of 84.9% which is sufficient to achieve the apparent Reliability of the scale by our research. The results also reveled a high level of the Reliability formation of the scale, where the value of the correlation coefficient between the level of rural woman developmental contribution using the proposed scale and one of the variables theoretically assumed to correlate significantly (which is the variable of the educational level of respondent) about 0.58 which is statistically significant value at the level Financial 0.01, which indicates a high level of the Reliability formation of the proposed scale of developmental contribution. The results indicated the high ability of the scale to distinguish based on two methods of the peripheral comparison and the Ferguson Coefficient of Discrimination, whose value reached 0.51, a high value indicating the ability of the proposed scale to distinguish.