Background and purpose of the study: Nausea and vomiting are of the most prevalent complications of pregnancy usually ignored given the unwillingness to use chemical medicines. This study was a double-blind clinical trial to examine the effect of ginger pill on treating NVP. Methodology: To this end, 58 pregnant women during the 10th to 15th weeks of pregnancy with nausea and vomiting of pregnancy who were not treated before, were randomly selected from Mahshahr clinics and were treated with ginger for 3 days. The data collection method included a questionnaire with demographic data and Rodse questionnaire and examining the number and severity of nausea and vomiting. Prior to the intervention, every day during the study, and after the study, the severity and frequency of nausea and vomiting were evaluated. They were compared to each other before and after the intervention. Results: The results indicated that using ginger had a positive effect on reducing the severity and frequency of NVP. Discussion and conclusion: The results showed that ginger was effective in the treatment of pregnancy nausea and vomiting.