Agrobiodiversity enhancement is increasingly recognized as a fundamental element of sustainable pest management strategies in greenhouse pepper production systems. Biodiversity provides essential ecosystem services by supporting natural enemy populations, regulating pest dynamics, and increasing system resilience. This review synthesizes current approaches for enhancing functional biodiversity within and around greenhouse environments, including floral strips, banker plants, intercropping, and targeted habitat manipulation to foster beneficial arthropods, pollinators, and natural enemies. These strategies contribute to ecological pest suppression and reduce reliance on chemical pesticides, aligning with the principles of sustainable and climate-resilient agriculture. The review highlights the mechanisms by which increased biodiversity enhances natural pest regulation, discusses the practical challenges associated with the implementation of these practices, and identifies critical research gaps in optimizing biodiversity-based pest management. Particular emphasis is placed on the integration of these ecological approaches into comprehensive Integrated Pest Management (IPM) programs tailored for greenhouse pepper production. Strengthening the role of biodiversity in pest management represents a key pathway toward resilient and environmentally sound protected horticultural systems. Keywords: Agrobiodiversity, Biological control, Integrated Pest Management (IPM), Greenhouse pepper, Habitat manipulation, Sustainable agriculture