This book consists of six main chapters. Chapter one discusses on drone in 3D building model including its research background, flight mission and results. Chapter two describes about drone in road pothole extraction which include the previous study on road pothole extraction, the technique to capture image for road pothole extraction and results obtain using drone images. Chapter three discusses on drone in road design including the introduction of drone in road design, the flight mission for image acquisition from certain altitude and results on road design using drone product. Chapter four describes about drone in agricultural monitoring which include the previous study on agricultural monitoring using drone, the technique used to capture image on the agricultural sites and the product of 3D results for agricultural plant. Chapter five discusses on drone building footprint extraction including the previous study on drone in building footprint extraction, the algorithm involves to extract building footprint, the flight mission technique to acquire building footprint and the results of building footprint acquire from drone images. Chapter six describes about drone in accident reconstruction which include the introduction on suitable drone for accident reconstruction, the technique used to capture data for accident reconstruction, the accuracy achieves for different technique of data acquisition and results of accident reconstruction using drone images.