Dental and oral health needs to be considered because it can effect the health of the body as a whole. If the acidity of saliva increases, it will be remineralization process that regains minerals and if the pH decreases, it can be demineralization process that disappears minerals in tooth enamel called caries. Efforts that can be made to overcome this are by rinsing your mouth using decoction of ginger and decoction of mint leaves. This study was conducted to determine the comparison of effect of gargling using decoction of ginger and mint leaves on pH and volume of saliva. This study was quasi-experimental with positive control group using povidone iodine, negative control group using mineral water, and a gargle group using decoction of ginger and decoction of mint leaves with concentration of 10%, 20%, and 30%. The respondents used were those who had dental caries and mouth ulcer of 40 people. Treatment in the form of gargling the mouth which is carried out twice a day for 3 days. Saliva is taken before and after treatment using spitting method. Volume of saliva is measured using measuring cup. And pH measurement use pH meter. Data were analyzed using paired t-test and kruskal walis with SPSS of 16.00 and significance level of 95%. The results of the study Comparison of the effectiveness of gargling the mouth using a decoction of ginger and mint leaves has no effect on the pH and volume of saliva. Increased volume of saliva occurred in respondents who gargle the mouths using decoction of mint leaves. Meanwhile, pH of saliva increase in respondents who gargle the mouth using decoction of ginger. Although the changes show insignificant value. Gargling using decoction of ginger leads to decrease the scale of mouth ulcer better than gargling using decoction of mint leaves. This is due to the presence of compounds that has anti inflammation. The conclusion was reached that rinsing the mouth using decoction has no effect in the volume and pH of saliva even though the changes that occur are still within the normal range