The aim of this Double blind randomized controlled trial is to determine the effect of Date Palm Pollen Capsule on sexual function in postmenopausal women. We will recruit 60 menopausal aged 50-60 years women from public health centers in Mashhad (2016), Iran. Inclusion criteria: Iranian women, Fifth grade of Elementary School, age 40-65 years for a research unit or her Spouse, Women with natural menopause, Married women and having sex at least once a month, desire to participate in the research. Exclusion criteria: Having any sexual dysfunction before menopause, Known medical conditions affecting sexual function in research unit or her Spouse, Research Unit or her Spouse have Consumption Drugs affecting sexual performance during the past three months, Experience some unpleasant or stressful life events in the past 6 months by the Research Unit or her Spouse, Research Unit have to be sensitive to pollen and medicinal plants, treated with hormonal drug, Research Unit or her Spouse addiction to drugs or alcohol. After getting written informed consent, participants will complete a self-administered questionnaire about demographic and reproductive history and also questions about Female Sexual Function Index (FSFI).The participants will be randomly divided in intervention and control groups (30 women in each group).The intervention group will receive Date Palm Pollen, 300 mg capsule, once daily for 5 week and the control group will receive placebo capsule, at the same dose as the intervention group. The participants will complete FSFI post -test questionnaires 5 weeks after intervention. The mean of difference in sexual function scores are compared among two groups. In this study we keep blinding for participants and researcher.