Agricultural biodiversity, or agrobiodiversity, is essential for food security and livelihoods. It includes the variety of plants, animals, and microorganisms used for food production, covering crops, livestock, forestry, and fisheries. This biodiversity has developed over thousands of years through natural and human influences. However, modern farming methods have reduced agrobiodiversity, posing risks to ecosystems and food security. This article highlights the significance of agrobiodiversity, the key role of custodian farmers, and ongoing global conservation efforts to protect these critical resources.