The Weichang area in Hebei Province has plenty of natural zeolite resources. However, limited researches have been paid to this zeolite. In this paper, such means as XRD, XRF, FTIR, specific surface area and pore size distribution analyzer and SEM-EDS were employed to analyze the mineralogical characteristics of the natural zeolite. Benzene, methylbenzene and water vapor were used to evaluate the adsorption property of the natural zeolite. The results showed that the natural zeolite consisted of clinoptilolite and quartz and the SiO₂/Al₂O₃ ratio was 5.3. The natural zeolite had relatively high specific surface area (27.67 m²/g), a few micropores and plenty of mesopores. The zeolite exhibited good adsorption property on benzene, methylbenzene and water vapor. The maximum adsorption capacity and equilibrium time for benzene and methylbenzene were 1 309.29 mg/g and 1 101.96 mg/g, 240 min and 300 min, respectively. The adsorption systems for benzene and methylbenzene obeyed the pseudo-second-order kinetic model, and Freundlich model could fit the isotherm well. The water vapor adsorption per unit area on the natural zeolite was 0.935 8 mg/m² under 70% humidity at 30℃ for two days of adsorption.