TA-Q12 is a small-size quad-rotor UAV completely made of carbon fiber materials. By leveraging the advanced algorithms such as active disturbance rejection, it shows stable flight attitude and is applicable to diversified complicated operating conditions. It can carry high-accuracy integrated navigation equipment and 3-light (visible light/IR/laser ranging) EO pod for executing missions such as reconnaissance, patrol, and search and rescue. This UAV is preponderant owing to its fast deployment, long operating range, long endurance, and easy maintenance.