Fuente: Wipo "BigData" The invention discloses a risk monitoring method and device based on big data and a medium, and the method comprises the steps: determining a stock customer list submitted by a user, and determining a monitoring index according to the stock customer list; determining enterprise data according to the monitoring indexes, and performing data processing on the enterprise data to obtain evaluation data; determining dynamic data of the user according to the stock customer list, and training a preset neural network model according to the dynamic data to obtain a risk monitoring model; and inputting the evaluation data into the risk monitoring model to obtain an evaluation result, and performing early warning according to the evaluation result. According to the method and the device, the key data related to the customers can be accurately captured through the monitoring indexes customized for the stock customer list, and the analysis accuracy is improved.