Mild preeclampsia is the frequent disease experienced by pregnant women in Puskesmas Jagir in 2011-2014. The number of mild preeclampsia in Puskesmas Jagir keep increase significantly. The purpose of this study is to analyze the association between the characteristics, family history and calcium supplementation in pregnant women with mild preeclampsia at Puskesmas Jagir Surabaya. The type of research is non-reactive research with case control design. Subjects was taken from the population using simple random sampling. The variables studied were age, body weight changes, parity, family history of preeclampsia, contraception, family history of diabetes mellitus, family history of chronic hypertension, and calcium supplementation. The statistical test was Chi-square test with α = 0.05, odds Ratio is calculated by value with 95% confidence interval (CI 95%). Variables associated with mild preeclampsia is a maternal characteristics such as parity (p = 0.001, OR 0.17) and contraception (p = 0.019, OR = 5.636). Variables that are not associated with mild preeclampsia is a maternal characteristics such as the form of changes in body weight during pregnancy, age, and family history of diabetes mellitus in the form of family history and family history of hypertension and calcium supplementation. There is a association between parity and contraception with mild preeclampsia.