Granules　of　SAPO-　34　and　strips　of　ZSM-　5　zeolites　had　been　experimented　in　the　constant　temperature　and　humidity　box　to　measure　water　adsorption　characteristics　of　two　materials　by　using　weighing　method.　The　adsorption　characteristic　curves　and　the　dynamic　adsorption　isotherms　of　two　kinds　of　zeolites　were　fitted.　The　experimental　results　show　that　the　adsorption　rates　of　two　kinds　of　zeolites　increase　with　the　increasing　of　relative　humidity　under　the　same　temperature.　But　SAPO-34　is　more　sensitive　to　air　relative　humidity　of　70%-80%　range　and　ZSM-5　is　more　sensitive　to　air　relative　humidity　of　60%-70%　range.　The　adsorption　speed　is　a　decreasing　function　of　time,　but　it　increases　with　the　increasing　of　temperature　and　relative　humidity.　Compared　with　the　ZSM-5,　as　the　absorbent,　SAPO-34　can　shorten　cyclic　adsorption　time.　In　addition,　the　condensation　temperature　of　SAPO-34　is　higher　by　comparing　the　adsorption　isotherms　of　two　kinds　of　zeolites.　So　SAPO-34　is　more　suitable　for　summer　air　conditioning　and　refrigeration　system.　©　2016,　Editorial　Board　of　Acta　Energiae　Solaris　Sinica.　All　right　reserved.