The present research reports on flax textile modification by the use of sol-gel technology with the purpose to determine their antibacterial properties. The evaluation of antibacterial activity against pathogenic microorganisms Pseudomonas aeruginosa, Staphylococcus aureus and Escherichia coli was carried out by the Parallel streak method in accordance with the ATCC147 standard. The morphological changes on the flax textile surface before and after coating were evaluated by Scanning Electron Microscopy (SEM). It has been concluded that the sol-gel treatment can impart antibacterial properties to flax textiles against all tested bacteria preventing the bacteria growth.