Abstract: Maternal childbirth expectations play an important role in determining a woman’s response to her childbirth experience. A women’s attitude toward labor pain is influenced by various factors. One of the most important psychological factors influencing labor pain is realistic and unrealistic expectations of mother regarding the labor pain. A proper understanding of factors involved in labor pain paves the way for women’s higher adaptability to pain and proper use of pharmacologic and non-pharmacologic interventions to relieve pain. In this descriptive-comparative study 600 primiparas and multiparas women who had vaginal deliveries were randomly selected and interviewed. The data was collected by questionnaire and the intensity of pain was determined using Visual Analogue Scale (VAS). Data was analyzed using Student’s t-test and Pearson’s correlation. Comparison of the means of mother’s expectation of labor between the two groups demonstrated a statistically significant difference (t = 4.47, p <0.003). Most primiparas and multiparas women had negative expectations toward labor experience. In the two groups, there was a significant relationship between expectation and intensity of labor pain experienced. primiparas women expected and experienced more negative emotion about labor pain.