Insect farming has gained recognition as a sustainable and practical alternative to conventional livestock farming, providing notable environmental advantages amid challenges such as climate change, resource scarcity, and increasing food demand. This chapter examines the ecological benefits of insect farming, including its ability to lower greenhouse gas emissions, minimize land and water consumption, and improve feed conversion efficiency. By analyzing both the environmental impact and scalability of insect farming, the research underscores its potential to lessen the ecological burden of food production. Case studies from regions such as Thailand and Europe demonstrate how insect farming is being implemented to manage agricultural waste, preserve biodiversity, and support sustainable food systems. Additionally, the study explores the policy measures and research investments needed to facilitate the expansion of the insect farming industry. Strategies such as financial incentives, public education initiatives, and strengthened regulatory policies are essential for its broader adoption. Ultimately, the chapter highlights the importance of continuous innovation and collaboration among key stakeholders to optimize the environmental benefits of insect farming and incorporate it into mainstream food systems. As a sustainable protein source, insect farming represents a significant step toward developing more resilient and eco-friendly global food networks.