(1) Background: Barangay health workers (BHWs) play important roles as community health workers in preventing noncommunicable diseases (NCDs), where the shortage of health professionals is felt more acutely in the Philippines. However, there is little research on the experiences of BHWs as community health workers in preventing NCDs. This study aimed to clarify the roles and difficulties of BHWs in conducting activities for the prevention of NCDs. (2) Methods: Qualitative data were collected from 25 BHWs. (3) Results: The mean age of the participants was 50.4 ± 9.5 years, 23 were women, and the mean length of time as a BHW was 9.1 ± 7.7 years. Three major themes about the role of BHWs in preventing NCDs-"screening for NCDs", "assisting patients with management of their conditions", and "promoting healthy behaviors"-and four major themes about the difficulties-"insufficient awareness of preventative behaviors", "economic burdens", "lack of resources for managing NCDs", and "difficulty of access to medical care facilities"-were identified. (4) Conclusions: Through the findings of this study, focusing interventions aimed at addressing the difficulties for the prevention of NCDs among BHWs may help reduce health inequities.