Abstract: A package device for drying agents is disclosed. The package device comprises a first compartment for containing a drying agent and a second compartment for containing a liquid. These compartments are separated by a barrier plate. The barrier plate has holes formed thereon. A side wall of the first compartment is constructed with windows. The packaging device is made of plastic materials. A slot mortise is formed at the top of the first compartment and an inner wall of the slot mortise is constructed with a recess. A tenon is formed at the bottom of the second compartment and an outer surface of the tenon is constructed with a protrusion. The tenon is capable of inserting into the slot mortise through the engagement of the protrusion of the tenon with the recess of the slot mortise. A plurality of the package device can be connected in chain and used together. The package device is resistant to the corrosiveness of the liquid generated by the drying agent.