In order to meet the requirements of the efficient rotary desiccant technology，the aluminosilicate was
synthesized via the hydrothermal method，and the influence of the stirring time on the adsorbent properties was revealed． Then，the structure and morphology of the absorbent were characterized by using the N₂ adsorption-desorption isotherm and by means of TEM，XPS，XRD and FT-IR，and the adsorption/desorption properties of the adsorbent on water vapor were determined by using a dynamic vapor sorption system (DVS-STD)． Experimental results show that，as the stirring time increases，the specific surface area，pore volume and surface Si/Al ratio of the adsorbent gradually increase，the average pore size gradually decreases，and the absorption property of the adsorbent on water vapor is improved，and that the adsorbent has a low desorption temperature of 360 K，and the absorption property of the aluminosilicate on water vapor is better than that of zeolite 3A at a low relative humidity (RH≤40 %)．