The invention relates to a method of nanoparticles laser pyrolysis with energy transfer by solid particles, in the synthesis zone. According to the invention, the method comprises several steps: a first step of supply with precursors, a second step of thermally processing the precursors by dispersion, using ultrasounds, or by dosing the precursors – solid micro/nanoparticles – using neutral gas transport and mass control, followed by a step of injecting the precursors, using an injector, while controlling the temperature of the injected precursors, after which, in the fourth step, processing takes place in the active reaction zone which is geometrically represented by the intersection of the flux of precursors and a confining gas with the laser beam, followed by a step of filtration and recycling of synthesis products and of discharging the gaseous components to purification systems.