Background: The National Healthy Schools and Villages Program aims to provide and maintain water, hygiene and sanitation facilities in rural and peri-urban villages and schools in the Democratic Republic of Congo (DRC). In South Kivu, at least 75% of projects fail when the involvement of the population is not taken into account. This is the case of the Bunyakiri Health Zone where a weak appropriation of the achievements of the Healthy Schools and Villages Program in the post-certification phase is observed, resulting in the loosening of the community. The aim of the study was to determine the factors associated with low ownership of the post-certification phase of Healthy Schools and Villages Program. Methodology: The study was descriptive cross-section using a semi-structured questionnaire. It involved 383 households located in healthy villages and 69 certified schools. Data processing and analysis was done using Stata v14 software. We used the Chi-square test to compare categorical variables at the level of statistical significance set at p <0.05. Results: The level of ownership of the Heathy Schools and Villages Program in the post-certification phase is low and associated with the negative perceptions of the community towards the Healthy Schools and Villages Program (p = 0.0294); insufficient and / or lack of financial resources (p = 0.0327); the absence / non-existence of community-based committees in some villages and schools (p = 0.0000); the lack of motivation of the members of the existing committees and the effectiveness of these committees (p = 0.0134); the insufficiency / absence of supervision of permanent monitoring of activities by the BCZ and the technical and financial partners (p = 0.0024 and 0.0286) and the low or not community mobilization in the village (p = 0.0000).Discussion and Conclusion: The low ownership of Healthy Schools and Villages Program remains a major problem in communities and the involvement of all stakeholders in the process is of great importance. Intervention projects should set up dynamic committees and motivate them, a monitoring plan and financial support while building community support in order to sustain interventions.