Abstract. This work is devoted to the study of the axial image point formed by a layered diffractive lens illuminated by laser light of different wavelengths. The influence of chromaticity can be identified when there is a change of quantisation levels and harmonic interval (bringing the phase to the level 2πn). The influence of aberrations introduced in the form of converging or diverging conical and cubic wavefronts will also be considered in this study. Keywords: diffractive optical elements, aberrations, chromatic properties of lensCitation: Kovalenko AI. Study of the chromatic properties of harmonic diffractive lens.