The invention discloses a data processing method, device and system. The method comprises the steps of receiving an event, wherein the event is used for indicating operation information of a user; according to flow points for processing the event, generating a node chain, wherein the flow points are logic processing points passed after the event happens, and the node chain is the processing procedure composed of a plurality of flow points; according to the preset data model, analyzing the node chain, and obtaining a processing result. The technical problems that due to the fact that in the prior art, according to rules, the risk judgment efficiency is low, when an existing network platform event happens, the network platform event processing efficiency is low are solved.