A　generalized　quasi-steady　and　one-dimensional　model　for　predicting　the　frost　growth　on　flat　plate　was　proposed　based　on　the　previous　theoretical　models.　To　improve　the　predicting　ability　of　the　current　model,　a　modified　semi-empirical　correlation　for　calculating　initial　condition　of　frost　density　was　presented　experimentally.　The　experiments　were　conducted　in　a　suction-type　open-loop　wind　tunnel　under　a　series　of　experimental　conditions:　air　temperature　-8°C　to　19°C,　humidity　42%　to　80%,　velocity　5m/s　and　the　temperature　of　cold　plate　-16°C　to　-8°C.　The　numerical　results　of　frost　thickness,　frost　density,　frost　surface　temperature　and　heat　flux　rate　were　compared　to　the　experimental　data.　The　simulation　results　were　found　agree　with　the　experimental　results　in　a　maximum　error　of　10%.　The　presented　model　was　further　validated　by　comparing　with　the　previous　published　experimental　data　in　a　wide　range　of　frosting　conditions.　It　was　found　that　the　presented　model　was　a　simple　but　universal　one　to　predict　the　frost　growth　on　cold　flat　plate.　©　2010　by　ASME.