In order to explore the relationship between moisture content and humidify velocity of aluminized paper under different relative humidity, and build the model of humidify velocity of aluminized paper, the gold and silver cardboard aluminized paper was studied. The moisture content at each time point and equilibrium moisture content were measured in the process of moisture absorption and dehumidification under each given relative humidity, and the model of humidify velocity was built by the regression analysis of equilibrium moisture content difference and humidify velocity. The research results showed that, there existed good linear relationship between equilibrium moisture content difference and humidify velocity of the two aluminized paper, i.e., the fitting model was more accurate when the first order polynomial fitting was selected. The moisture content of aluminized paper could be monitored and predicted at any point in time by the model, which could provide guidance for control of aluminized paper deformation in printing and packaging production.