Background: Conflict and war poses severe threat to the health and psychosocial well-being of every nation. It increases population displacement and high risk-behaviours thereby making the Internally Displaced Persons vulnerable to HIV/AIDS. The IDPs, therefore, need a collaborative community-based approach and social support system by the government, healthcare providers and the international organizations to tackle the impact of conflict and the post-conflict activities on vulnerability of HIV/AIDS among people living in IDPs camps. Methods: This qualitative study explores and analyses the psychosocial issues identified to increase the risk of HIV among IDPs. Twenty participants aged 18 to 57 years purposively selected from 6 camps in Benue and Nasarawa States participated in the face-to-face semi-structured interview from June to November 2020. Thematic analysis using ATLAS.ti8 software analyses the data collected by transcribing and coding the interview transcripts into themes and sub-themes. The findings calculated through thematic network analysis and presented in a graphical and word cloud analysis. Results: The study findings reveals that conflict and post-conflict activities by the armed bandits, refugees/IDP camps, children and women, family relations, and the uniform personnel increase the risk of contracting HIV among people living in IDP camps. Conclusion: Most victims who settle for IDP camps and family relations became victims of rape, sexual transaction, drug abuse, child abuse, prostitution, and banditry activities which possess major threat to the health and psychological well-being of the victims.Trial Registration: The study emphasized a collaborative effort of the government and the healthcare providers through a community-based approach to organize social support programmes on vocational skills acquisition and HIV education for the internally displaced persons and family relations. Also, the study recommended that the military, especially the younger uniform personnel, receive training on HIV/AIDS prevention.