Molybdenum nanoparticles (Mo-NPs) are widely used in the industry such as metallurgic additives, lubrication agents’ additives and powder sintering additives. Nanoscale molybdenum have drawn a lot of attention worldwide due to their unique electronic, mechanical and optical properties which make them potential agents in functional materials and nanodevices. Molybdenum nanoparticles turn out to show surprising benefits as pigments since they sustain homogenous lattice level and are as big as visible wavelengths 400 to 700 nm making them possible for visible wavelengths to interact with these nanoparticles in unusual ways not common among micron particles. Mo-NPs are applied as a raw material in cleaners, smoke suppressors and electrical components. Molybdenum nanoparticles are synthesize based on a few known methods as MoCl4 vapor reduction, plasma physical vapor deposition (PPVD) technology, microwave plasma chemical vapor deposition (MPCVD), molybdenum wire electro-explosion, hybrid plasma process, activated reduction technology, electron beam irradiating method, pulsed wire discharge technology and MoO3 vapor reduction. It should be noted that molybdenum nanoparticles are flammable and have to be treated carefully.