The　atomic　clock　device　is　complicated,　and　its　operation　is　influenced　by　a　lot　of　factors,　so　the　date　has　certain　randomness.　Predicting　atomic　clock　data　by　appropriate　algorithm　is　the　important　step　of　atomic　clock　data　processing.　This　article　chooses　SVM　algorithm　to　predict　clock　differences,　and　processed　the　real　atomic　clock　data,　compared　relative　error　with　the　prediction　results　and　the　results　of　linear　regression　algorithm,　the　prediction　algorithm　based　on　SVM　is　effective.