[en] The phytoremediation was widely studied in the field of treating technology of soil contamination with long-lived nuclides. Studies on the β-ray track imaging application in phytoremediation of radionuclide-contaminated soil were carried out in the present work. Experiments showed that this technology might be used for screening plants for phytoremediation and for the studies of phytoremediation mechanism, such as radioactivity concentration and distribution in plant organs. The influence of α- and γ-rays on the β-ray track imaging was studied. Theoretical studies showed that the influence of α-rays might be heavily reduced with proper thickness of PE-film. The image sensor was not so sensitive to γ-rays as β-rays, and the influence of surrounding γ-rays could be heavily reduced with a proper thickness of Pb-shielding