Abstract: The contribution of suberinite on the hydrocarbon generation is often underestimated by the geochemists and coal petrologists due to that the fluorescences of the suberinites in most sedimentary organic matters or coalbeds are eliminated in lower evolutional stages. The artificial thermal simulation on the bark of recent Quercus suberus is studied by means of the microfluoronetry and micro-Fourier infrared spectroscopy. The result indicats that the recent subereous component is an organic matter which has a great trand to generate oil, releases a lot of liquid hydrocarbons dominated by isomeric hydrocarbon and cycloparaffinic hydrocarbon under lower thermodynamic condition, and generates more 2/3 of C⁶⁺ hydrocarbons before the vitrinite reflectance of 0.5%. The hydrocarbon generation by thermal simulation of recent subereous component lags behind that of suberinite in geologic bodies, it could not ripeat fully the natural mature history of the suberinite.