This paper represent the innovative trends and aspect of green nanotechnology development challenges and opportunities in the field of alternative technology to assist in future developments in this field. There are various innovative applications of green Nanotechnology in different- different fields like Energy, Medicine and Drugs, Nano bio-technology, Nano devices, Optical Engineering, Defence & Security, Bio Engineering,Cosmetics,Nano Fabrics etc. Nanotechnology improves the process of production and also improves the quality of products. It works at the molecular level and utilizes the more advanced concept, idea and research for the development of different fields and production.