The rapid influx of married immigrant women from low-income Asian countries is a concern in South Korea, Japan, and Taiwan. In South Korea, 1 in 10 couples includes a Korean man and a migrant woman, increasing the need for prenatal and postnatal care interventions. Studies published in English or Korean after 2000 were retrieved from 8 databases and reviewed via a systematic review and meta-analysis of the effectiveness of prenatal and postnatal psychosocial and educational interventions in Korea. Of 3583 records, 10 studies (1 randomized controlled trial [RCT] and 9 non-RCTs) involving 408 married immigrant women fulfilled the inclusion criteria. A meta-analysis of the non-RCTs showed that prenatal and postnatal care interventions were effective in improving family support, knowledge regarding self-care management and infant rearing, and self-efficacy regarding self-care management and infant rearing. Subgroup analysis showed that interventions involving husbands and individualized care were most effective. This study illustrated the extent to which strategies are needed for developing prenatal and postnatal care interventions for married immigrant women. Further studies should explore other factors and identify the most important factor for improving the effectiveness of such interventions. Robust study designs published in peer-reviewed journals are required for examining the effectiveness of these interventions.