Diarrhea is the second leading cause of morbidity in developing countries and many factors are responsible for it including infectious and non-infectious. This study aimed to investigating the effect of using Mentha pulegium powder in controlling non-bacterial diarrhea in adults referring to clinics of Yasouj was done. In this randomized clinical trial of a blind, random sampling for block allocation. Number of samples 20 samples in the control group and sample size was 20 samples. In addition to drug therapy, patients in the experimental group with 60 grams of Mentha pulegium powder over 2 days (every day three times and each time 10 g) were treated. The collected data analyzed by SPSS version 16 and descriptive statistics and chi-square test was used. The minimum term specified in diarrheal cases in the experimental group according to his statement given time 1 day and maximum was 6 days. After taking the drug and Mentha pulegium, powder in the experimental group was 70 percent claimed fully was recovered. 85 percent of those with Mentha pulegium powder used for treatment and recovery time were under 10, and recovery 15% between 24-10 hours long. There was statistically significant relationship between Mentha pulegium powder and stop the diarrhea time (p = 0.005). Mentha pulegium powder along with medication can greatly contribute to the cessation of nonbacterial diarrhea. Thus, given the trend toward traditional medicine recommended policy powder used in the treatment of non-bacterial diarrhea.