The present invention relates to an apparatus for a high-speed analysis of gas samples using gas chromatography comprising: an organic gas analyzing part comprising a switching valve, a column, and a flame ionization detector (FID); and a fixed gas analysis part comprising a plurality of switching valves, three or more columns comprising a column for electrolyte separation, a column for carbon dioxide separation, and a column for separating fixed gas, a pressure controller, and a thermal conductivity detector (TCD), and an analyzing method using the same.
