Composite desiccants have received extensive research attention due to their advantages in combining each component. In this paper, LiCl/PVA/silica gel composite desiccant coatings were prepared by using silica gel as substrate, LiCl as hygroscopic salt and polyvinyl alcohol (PVA) with certain hygroscopic ability as the adhesive. The cyclic dehumidification characteristics of the coatings were experimentally investigated under different conditions, including LiCl impregnation concentration, PVA mass fraction, inlet air humidity and regeneration temperature. Results show that the coatings can achieve good cyclic stability even at different experimental conditions. The cyclic dehumidification capacity increases with the increased LiCl impregnation concentration, air humidity, and regeneration temperature but decreasing with the increase of PVA mass fraction.