Due to the summer air conditioning, problems with reserve power and refrigerant gas emissions are becoming serious environmental pollution problems. And many studies have been conducted to solve this problem, Environmentally new renewable energy is quick in action using waste heat now. Adsorption chiller with a low to medium heat on the 60~80 ℃ has been attracting attention. Adsorption chiller uses a low-temperature waste heat in the driving heat source and is environmentally friendly refrigeration systems using water as the refrigerant. At this time, the thermal conductivity of the adsorbent improvement, heat and mass transfer between the adsorbent and the heat exchanger the improved is important. This study uses transient hot-wire method for measuring thermal conductivity of the adsorbent. This method is to analyze thermal conductivity change of adsorbent Bed temperature and moisture contents of adsorbent packing density. The water adsorption properties of the adsorbent in the metal surface was analyzed. To predict the moisture absorption of the adsorbent in the actual system, The adsorber in the lab scale unit was produced. The copper plate was coated with adsorbent the experiment. Coating thickness, water absorption properties were evaluated according to the binder content. Effective thermal conductivity measurements of the adsorbent was measured in the order FAPO4-5(A), FAPO4-5(B), SS-SIL 52. The effective thermal conductivity difference FAPO4-5(A) and FAPO4-5(B) was determined to be less than 10%. The effective thermal conductivity is considered a greater impact than the moisture content and density influence the temperature. Moisture adsorption test results thickness increases, and when the binder content increases, the moisture adsorption is reduced. The refrigeration capacity and the heat exchanger size of the entire system will be able to design through the moisture adsorption amount of the coated adsorbent.