Nanotechnology is a new and developing application field that includes many application areas. It covers the application and integration of materials with sizes in the range of 1-100 nm into the production and application area. Different methods are preferred to synthesize nanoparticles in different sizes. Nanoparticle production with environmentally friendly green synthesis is a highly preferred synthesis method. In this context, it is important that the synthesis of metallic nanoparticles obtained by the green synthesis method is integrated into the application area, as well as that the chemicals used during the synthesis do not leave a toxic effect on the environment and are economical. This study focuses on the synthesis and application areas of nanoparticles with green synthesis.