Pseudomonas luteola has rarely been reported as a human pathogen. It was showed in previous studies showed that P. luteola may cause septicemia, bacteremia, peritonitis, and endocarditis in patients with underlying disease or with indwelling devices. In this article we report a case of P. luteola bacteremia without any source. We successfully treated our patient with ceftriaxone and ciprofloxacin combination