This study was carried out to examine the effect of mortality death rates on women age group in Nigeria. To achieve this objective, three research questions and two research hypotheses were formulated to guide this study. The data was collected from secondary sources. The secondary data were collected with the help of WHO Statistical Bulletin and other journals and articles. The data collected were analyzed using regressional analysis to test research hypotheses. The study reveals that there is a significance difference between the effect of mortality death rates on women age group in Nigeria; there are the preventive measures of maternal mortality in Nigeria. The concluded with some recommendations that there should be sensitization on the importance of the antenatal visit by making free health services and welfare of the mothers so as to reduce rate of maternal mortality and government and relevant stakeholders should advocate and implement these time honed public health strategies for protecting maternal health and preventing maternal deaths.