Present　situation　and　status　of　research　of　metal　hydride　heat　pumps　were　introduced.　The　thermodynamics　process　of　hydride　cooling,　system　was　analyzed.　A　2-dimensional　model　was　made　respectively.　The　dynamic　mass　and　heat　transfer　process　in　hydride　bed　was　analyzed.　The　performance　parameters,　such　as　refrigerating　capacity　and　refrigerating　coefficient　of　performance,　were　calculated　and　analyzed.　The　trends　of　various　calculated　parameters,　such　as　hydrogen　concentration　and　temperature　in　reaction　bed,　pressure　and　temperature　of　hydrogen　gas,　beat　exchanged　between　reaction　bed　and　heat　transfer　fluid,　were　analyzed　when　time　changes.　The　effects　on　system　coefficient　of　performance　of　all　kinds　of　design　parameters,　such　as　thickness　and　conductivity　of　reaction　bed,　cycle　time,　were　studied.　It　can　be　seen　that　low　conductivity　in　hydride　bed　limits　the　performance　of　system　evidently.　Different　measures　should　be　taken　to　enhance　the　conductivity　in　bed.　Continuous　refrigerating　capacity　can　be　produced　by　two　hydride　systems.