The article reviews the use of plant extracts as a "green" method for synthesizing metal nanoparticles. This approach is gaining attention due to its cost-effectiveness, environmental safety, and the ability to produce nanoparticles with specific properties. The review highlights the role of plant biomolecules, such as terpenoids, flavonoids, sugars, and proteins, in the bioreduction of metal ions during nanoparticle synthesis. It discusses the factors affecting the morphology, size, and yield of nanoparticles, including pH, temperature, and the presence of exogenous biomatrices like peptides and viral particles. The article also explores the potential applications of these nanoparticles, such as in cancer therapy, drug delivery, and environmental remediation, and compares their biological and physicochemical characteristics with those produced through traditional methods. Despite some limitations, the "green" synthesis of metal nanoparticles using plant extracts shows significant potential and advantages over conventional methods.The article reviews the use of plant extracts as a "green" method for synthesizing metal nanoparticles. This approach is gaining attention due to its cost-effectiveness, environmental safety, and the ability to produce nanoparticles with specific properties. The review highlights the role of plant biomolecules, such as terpenoids, flavonoids, sugars, and proteins, in the bioreduction of metal ions during nanoparticle synthesis. It discusses the factors affecting the morphology, size, and yield of nanoparticles, including pH, temperature, and the presence of exogenous biomatrices like peptides and viral particles. The article also explores the potential applications of these nanoparticles, such as in cancer therapy, drug delivery, and environmental remediation, and compares their biological and physicochemical characteristics with those produced through traditional methods. Despite some limitations, the "green" synthesis of metal nanoparticles using plant extracts shows significant potential and advantages over conventional methods.