Abstract: The present disclosure provides a prediction method of wind power output, an electronic device, a storage medium and a system, and relates to the technical field of wind power. The method includes: periodically acquiring an initial meteorological data set corresponding to each received time node, wherein the initial meteorological data set includes initial meteorological sub-data of at least one dimension of at least one meteorological element; after acquiring the latest initial meteorological data set, identifying and smoothing the abnormal sub-data to obtain a smoothed meteorological data set; determining an average wind energy density in a target time period; taking the smooth meteorological data set and the average wind energy density in the target time period as the input features of the model, and obtaining a wind power output predictive value via the model.