“Environment, Nature, Harmony: Lessons from the Film ‘The Biggest Little Farm’” explores the importance of sustainable agricultural practices that harmonize with nature in order to respond to the environmental challenges facing modern agriculture. The paper centers on the journey of the Chester couple, as traced in the documentary The Great Little Farm, and documents how they transformed 200 acres of barren farmland into a thriving farm with a diverse array of life. The paper is organized into four main parts. The first part introduces the background and objectives of the study, while the second part explores the specific sustainable farming practices adopted by the Chesters. The third part analyzes the key principles and practices that promoted harmony with nature on the Great Little Farm, and the fourth part explores the broader implications of these lessons. The Chesters’ approach reflects a deep respect for the natural world and the complex interdependence of ecosystems. They created a self-sustaining ecosystem by nurturing a wide variety of plants and animals, and adopted biological pest management using natural predators instead of chemical pesticides. Through these strategies, they have shown that biodiversity is fundamental to sustainable agriculture. They focused on improving soil health on the farm, using a variety of natural techniques such as composting, growing cover crops, and rotational grazing to restore soil and maintain ecosystem health. Despite facing various natural disasters, including drought, pests, and wildfires, the Chesters maintained their resilience and determination to live in harmony with nature. In doing so, they have translated their philosophy of farming in harmony with nature into practical decisions and actions. The Chester’s experience demonstrates that sustainable agriculture is environmentally responsible and economically viable, and has the potential to contribute positively to environmental conservation and human well-being.