With the acceleration of urbanization and the rapid growth of high-rise buildings, the cleaning and maintenance of high-rise windows is becoming increasingly challenging. Traditional window cleaning methods require manual climbing and hanging of fragile scaffolding, which is not only inefficient, but also carries extremely high risks and safety risks. Therefore, it is urgent and important to develop an efficient, safe and reliable window cleaning solution.Making full use of modern technology and innovative thinking, we propose a completely new design solution to meet the requirements of high-rise window cleaning. The UAV adopts a multi-rotor design as a whole, which can hover and move autonomously on the outer wall of a tall building. Equipped with a professional window cleaning device for efficient window cleaning.The manufacturing process of high-altitude window cleaning drones should consider the following aspects: 3D printing technology can realize the rapid manufacturing of complex structures, which can be used to manufacture small parts and specially shaped parts of drones. CNC machining technology can accurately process each part of the drone, improving manufacturing accuracy and consistency. Automated assembly through the automated assembly line can improve production efficiency and quality control, to ensure the manufacturing consistency of the drone, the surface treatment of the UAV can use spraying, electroplating and other processes to improve the corrosion resistance and appearance quality of the material.Through this design, high-altitude window cleaning multi-rotor UAVs will bring revolutionary changes to the window cleaning industry. It will provide a safer and more efficient working environment for cleaning personnel and significantly improve the quality and efficiency of window cleaning. In addition, it reduces labor costs and reliance on traditional cleaning methods, making a positive contribution to the maintenance of urban environments and window cleaning.