Using PET track-etched membranes with thickness of 12 μm as template, polycrystalline nickel nanotubes with outer diameter of 380 nm and wall thickness 95 nm were synthesized by electrochemical method. A comprehensive study of the structural, morphological and electrical characteristics of irradiated at different conditions Ni nanotubes was carried out. The ability of modification of structural parameters such as lattice parameters and the average size of crystallites and conductivity of Ni nanotubes by irradiated with С3+ ions with energy 1.75 MeV/nucleon and fluence ranging from 1 × 109 to 5 × 1011 cm-2 was shown.