Nausea and vomiting (emesis gravidarum) 50-60% occur early in the first trimester of pregnancy, causing an increase in the hormones estrogen, progesterone, and the release of human chorionic gonadothropine. Excessive emesis gravidarum is at risk of hyperemisisgravidarum which threatens the lives of pregnant women. Objective: To determine the relationship of knowledge and attitudes of pregnant women to emesis gravidarum in Sumobito Health Center, Jombang Regency. Quantitative research methods, Obeservational data collection techniques, cross sectional approach, Total population of 34 trimester 1 pregnant women, sample: total sampling, Spearman Rank Correlation statistical test. And somers statistical test. The results of the study: pregnant women who have good knowledge 15 (44.1%), sufficient knowledge 13 (38.2%), and less knowledge 6 (17.7%). While being positive 24 (71%) and being negative 10 (29%), the Spearman Rank test. Knowledge α = 0.005. Value of p = 0.216. Means there is no relationship and somers test attitude a = 0.05 value of P = 0.954. Means there is no relationship. There is no relationship of knowledge with the incidence of emesis gravidarum and there is no relationship between the attitude of pregnant women with the incidence of emesis gravidarum