Perineal wound is a tear that occurs when a baby is born either spontaneously or using tools or actions. One of the alternative ways to heal perineal wounds is to use red betel leaf boiled water. This study aims to determine the effect of using red betel leaf boiled water on the healing time of perineal wounds at Aster Clinic, Karawang Regency in 2020. Quasy experimental design research posttestonly control group design. The sample in this study were 15 postpartum mothers in the Aster Clinic as many as 15 experimental groups and 15 control groups. Data collection used observation sheets. The univariate analysis used the central tendency distribution and the bivariate analysis used the independent t test. The average perineal wound healing time after using red betel leaf boiled water was 5.80 days, while in the control group it was 7.80. There was an effect of using boiled red betel leaf water on time for healing perineal.