The invention provides a big data risk control model and online system configuration technology, which comprises risk control model construction and risk control model configuration, and is characterized in that the risk control model construction comprises the steps of sample acquisition, data processing, data table generation, data division, feature engineering and model establishment, wherein the model configuration comprises feature configuration, model configuration and monitoring configuration. By implementing the technical scheme of the invention, on one hand, a plurality of feature construction modes are combined together, and a variable cross combination operation mode is added, so that the combination relationship between variables is comprehensively mined, and the model precision is improved; on the other hand, on the basis of traditional feature screening, correlation inspection between variables is added, so that excessive variables entering the model can be prevented, thecalculation cost can be prevented from being increased, and model over-fitting can also be prevented; projects, characteristic variables, models, user roles and the like can be managed in a unified mode.