The role of non-governmental organizations (NGOs) in health capacity building for trained community volunteers in Myanmar, a Least Developed Country (LDC) is significantly noteworthy. The study highlights the training programs and initiatives conducted by NGOs in areas such as sexual and reproductive health and rights (SRHR) and Gender-Based Violence (GBV) prevention, addressing critical needs in family planning, maternal health, GBV prevention, and the prevention of TB, HIV/AIDS, and other infectious diseases. The training programs and packages are designed to equip healthcare providers and community volunteers with fundamental skills, thereby enabling them to effectively address the health issues facing by the community especially among the vulnerable population. The study also points to the effective use of participatory learning methods by NGOs, such as interactive workshops, role-plays, case studies, and group discussions, which actively engage participants and promote an environment conducive to collective learning and knowledge sharing. Furthermore, through FGD, it was found that NGO interventions contribute to positive changes in health behaviors, such as increased awareness of preventive measures and adoption of healthier lifestyles.