Background: Preeclampsia is major cause of maternal mortality in developed and developing countries. It is also a major cause of perinatal morbidity and mortality. Perinatal outcome is influenced by history of hypertension in pregnancies. Objective: To compare superimposed preeclampsia and genuine preeclampsia with perinatal outcomes. Methods: Retrospective observational analytic with cross sectional method. The sample are pregnant women who diagnosed preeclampsia in PKU Muhammadiyah Temanggung hospital. 91 cases are collected based on medical record. The data were analyzed by Chi- Square test with the significance of p<0,05. Result: There was a correlation between superimposed preeclampsia and genuine preeclampsia with perinatal outcomes in PKU Muhammadiyah Temanggung hospital (p=0,000). Conclusion: women with superimposed preeclampsia have a higher risk of adverse perinatal outcomes than genuine preeclampsia.