Thirty five strains of bacteria of the genus Pseudomonas were isolated from contaminated food (milk, meat and fish). Their morphological and physiology-biochemical characteristics which allowed identifying 10 strains have been studied. Six strains belong to P. fluorescens, and four strains – P. aeruginosa. The isolated bacteria identification tests were based on such properties as their dependence on molecular oxygen, ability to form specific pigments, catalase activity, ability to grow at different temperatures, ability to reduce nitrates and nitrites, ability to hydrolyze starch, as well as morphology of cells.