In this paper, we present a new method to synthesize the quasi-one-dimensional (1D) BaCoO3 single crystal using (NaOH+KOH) flux at ambient pressure. Composition analysis showed that the crystal was stoichiometric. The structure was determined by single crystal x-ray diffraction. This study sheds new light on the synthesis of the low dimensional cobalt oxides. At the end, the physical properties were investigated in BaCoO3 single crystal. It was found that the titled compound is electrically insulating with a gap of 61 meV along the chain. (C) 2015 Elsevier B.V. All rights reserved.