The AI-Based Pest Disease Identification System is a mobile application developed to support the Agriculture Department in rapidly and accurately identifying crop pest diseases using artificial intelligence. Replacing the traditional manual process, the app enables field officers and farmers to capture images of crops and receive instant disease detection results, helping improve response time and advisory accuracy. The system also integrates real-time weather data through departmental APIs to support disease forecasting and preventive decision-making. Designed with a user-friendly interface, the platform strengthens field-level extension services, enhances farmer support, and promotes data-driven agricultural management through technology-enabled diagnostics and informed interventions.