Integrated Pest Management (IPM) has emerged as a sustainable, scientifically grounded, and environmentally responsible approach to managing agricultural pests while minimizing negative impacts on human health and ecosystems. Conventional pest control practices, which rely heavily on synthetic chemical pesticides, have often led to significant problems, including pesticide resistance, pest resurgence, ecological imbalance, contamination of soil and water, and reduction of biodiversity. In contrast, IPM adopts an ecosystem-based strategy that integrates multiple compatible control methods, including biological, cultural, mechanical, physical, and need-based chemical interventions, all guided by systematic pest monitoring and decision-making based on economic and action thresholds. This chapter provides a comprehensive overview of the principles, components, and practical applications of IPM in modern agriculture. It traces the historical evolution of pest management, highlights key IPM principles, and discusses pest monitoring techniques, decision-support systems, and threshold-based interventions. Emphasis is placed on the socio-economic and environmental significance of IPM adoption, including reduced pesticide use, enhanced crop productivity, improved farmer livelihoods, and conservation of beneficial organisms and ecosystem services. Case studies from various cropping systems and geographical regions demonstrate the effectiveness of IPM in achieving sustainable crop protection while maintaining ecological balance. The chapter also identifies challenges in widespread IPM implementation, such as knowledge intensity, labor requirements, limited access to biological control agents, and climate-induced shifts in pest dynamics. Future prospects, including the adoption of digital technologies, climate-smart strategies, biopesticides, and biotechnological innovations, are explored. Overall, IPM is presented as a holistic and essential framework for achieving resilient agroecosystems, sustainable food production, and long-term environmental conservation in the face of increasing pest pressures and global climate change.