Hyperemesis gravidarum is a condition that is most often experienced by a pregnant woman which results in a mother having to get hospital care and treatment. Hyperemesis gravidarum generally occurs in the sixth to tenth week of pregnancy and occurs in about 60-80% of mothers with first pregnancies. Hyperemesis gravidarum not only threatens the life of pregnant women, but also has side effects on the fetus such as abortion, low birth weight and stunted fetal growth. To determine the effect of giving lemon steeping water to reduce emesis gravidarum. This type of research is Quasy Experiment with One Group Pretest Posttest. The sample is all pregnant women who experience emesis as many as 15 people with a period of 6 months. Data analysis using the T-Test Dependent statistical test. Statistical tests showed the frequency of nausea and vomiting before the intervention was given, namely 10.93 and after the intervention was given, namely 3.33 with an average decrease of 7.60. The statistical test results obtained a p-value = 0.00 (p <0.05) so that it can be concluded that giving lemon steeped water is effective in reducing nausea and vomiting in pregnant women. The frequency of nausea and vomiting before the intervention was given was 10.93 and after the intervention was given it was 3.33 with an average decrease of 7.60. The statistical test results obtained a p value <0.005 so it can be concluded that giving lemon infusion is effective in reducing nausea and vomiting in pregnant women.