This study aimed to test the effects of boiled Anethum Graveolens seeds on pain intensity and duration of labor stages. A randomized clinical trial was conducted on 153 eligible participants who had regular uterine contractions. Participants were allocated to either intervention or control group receiving boiled Anethum Graveolens seeds or routine care, respectively. Preparation of Anethum Graveolens boiled solution was as follows: 10g (two tablespoons) of seed in 100cc water boiled for 10min. After filtration, this solution used by intervention group only once after starting active phase (3-4cm of cervix dilatation). Participants were followed up to the delivery time. Data were analyzed using T, and Chi square tests. Findings showed that the length of the all stages of labor were significantly lower in intervention compared to control group in except for second stage in primiparous. The second stage of labor in primiparous participants in intervention group was shorter than control group, although the difference is not significant. Moreover, intervention group had a significantly better dilatation and effacement scores after 1, 2, 3 and 4h following the intervention compared to control group. Results supported the boiled Anethum Graveolens seeds as an effective way to progress of the labor.