The invention discloses a sepsis data processing system which comprises a model training unit and a prediction unit. The model training unit is trained according to patient data provided by an intensive care medicine database to obtain an identification model, the identification model is stored in a storage unit, the prediction unit identifies output representation identification results by the identification model, the model training unit comprises a data preprocessing module, a data separation module, a training data integration module and a model training module, the data preprocessing module preprocesses the patient data from the intensive care medicine database to obtain the preprocessing patient data, the data separation module divides the preprocessing patient data into a finally diagnosed sepsis forward training data and finally diagnosed non-sepsis reversal training data, the training data integration module integrates training data into a training data set, and the model training module is trained according to the training data set to obtain the identification model. The system has the advantages that influence of man-made decision factors is relieved, potential characteristics of data are more easily excavated, and sepsis prediction accuracy is effectively improved.