ProblemAlthough there is robust evidence for the benefits of midwifery group practice (MGP) caseload care, there are limited opportunities for women to access this model in Australia. There is also limited knowledge on how to sustain these services. BackgroundMGP can benefit childbearing women and babies and improve satisfaction for women and midwives. However, sustainability of the model is challenging. While MGPs are often supported and celebrated, in Australia some services have closed, while others struggle to adequately staff MGPs. AimTo investigate midwives and managers opinions on the management, culture, and sustainability of MGP. MethodsA national survey of MGP midwives and managers was distributed (2021 and 2022). Quantitative data were analysed using descriptive statistics, and qualitative data were analysed using content analysis. ResultsA total of 579 midwives and 90 managers completed the survey. The findings suggest that many MGPs do not support new graduates and students to work in MGP. Over half (59.8%) the participants (midwives and managers) reported that the women and families were the best aspect about working in MGP, while 44.3% said the effects on midwives’ lifestyle and families were the worst aspect. DiscussionThe relationship with women remains the major motivator for providing MGP care. However, work-life imbalance is a deterrent, exacerbated by staffing shortages. Staffing might be improved by adequate renumeration, strengthening orientation, and attracting new graduates and students through experience in MGP. ConclusionsThere is a need to attract midwives to MGP and improve work-life balance and sustainability.