Primary post partum hemorrhage is heavy bleeding or bleeding slowly but continuously more than 500 ml within 24 hours after the child is born, the most frequent cause of bleeding is because of the short birth distance <2 years, Grandemultipara. World Health Organization (WHO) in 2009, around 5% - 15%. This study aims to determine the Midwife's Behavior about Handling Post Partum Primary Bleeding in Medan Hajj Hospital in 2011. This study uses an observational descriptive design. Population and sampling technique that is saturated sample with a number of 24 people. Data obtained through questionnaires and processed by editing, coding, tabulating, scoring and analysis Based on the results of the study demographic data obtained that the majority of midwives aged 21-30 years were 13 people (54%), the majority of midwives with a DIII education were 21 people (88%), the majority of midwives worked for 1-5 years as many as 18 people (75%) , and the majority of midwives who obtained information in the form of media were 21 people (88%). Midwives knowledge about handling primary post partum hemorrhage is sufficient as many as 18 respondents (75%), attitude of midwives about handling primary post partum hemorrhage as much as 13 (54.1%) and midwife's actions about handling primary post partum hemorrhage as much as 18 (75%). Based on the research results of the midwife's behavior regarding primary post partum handling it can be concluded that the majority of respondents behaved sufficiently, it is expected that the leadership of the Medan Hajj Hospital made a policy to reduce the incidence of post partum hemorrhage.