In the work it has been shown that the theory of the light absorption of the nanocomposite in the framework of the local field theory can be used for simulation of the absorbance spectra of the colloidal solutions of the nanoparticles. Results of calculations have demonstrated that the proposed method demonstrates insufficient differences in the light absorption by the nanoparticles of different sized, but also reflect the difference in the absorbance spectra of the nanoparticles with different stabilizers. The proposed method may be useful for the simulation of the nanosystems used in nanosized optoelectronic devices.