Metal nanoparticles (MNPs) Medical imaging, bioengineering, photoelectricity, antibacterial, anticancer, and catalysis are just a few of the many areas where their unique physical and chemical properties have been extensively utilized. In the conventional MNP synthesis method, toxic chemicals are typically used as reducing and stabilizing agents. This method is extremely harmful to the environment and takes a long time. Because of this, environmentally friendly MNPs synthesis has recently received a lot of attention. Utilizing plant extracts as reductants and stabilizers enables MNP synthesis to be simple, cost-effective, and long-lasting. In addition, unlike their conventional counterparts, the as-synthesized MNPs are uniform in size, less toxic, and more stable. Green preparation methods are becoming an increasingly important focus in MNPs synthesis research. This systematic review provides a summary of the most recent developments in the utilization of plant extracts as reductants and stabilizers in the green synthesis of MNPs. The potential applications of MNPs made from plant extracts have also been studied in greater detail.