The　NaY　zeolites　were　prepared　by　hydrothermal　synthesis　method.　The　influence　of　NaY　zeolite　calcined　at　different　temperatures　as　carriers　for　Rh/NaY　catalysts　on　the　hydroformylation　of　formaldehyde　was　investigated.　The　physical　and　chemical　properties　of　Rh/NaY　catalysts　and　their　performance　were　characterized　in　details.　When　the　zeolites　were　calcined　at　400-700　degrees　C,　the　crystal　structure　and　morphology　were　kept　unchanged　within　this　range　of　calcination　temperature.　However,　the　surface　crystallinity　and　surface　area　were　reduced　with　increasing　the　temperature　due　to　the　partially　collapsed　of　its　framework,　and　thus　reducing　the　confine　of　cages　structure　to　rhodium　species　promote　its　participation　in　the　coordination　reaction.　The　reduction　in　the　amount　of　surface　Lewis　acid　can　reduce　the　electronegativity　of　the　carrier　and　change　the　electronic　state　of　the　surface　rhodium　species,　which　would　weaken　the　hindrance　to　anionic　speciation　and　promote　CO　insertion,　which　facilitates　the　hydroformylation　of　formaldehyde.