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This specification provides a task processing method, program product, device, and storage medium. After obtaining a task requirement in natural language input from a user, a task planning model can be used to generate at least one analysis strategy based on the task requirement, the data type of the data required for the data analysis task, and a pre-built knowledge graph, and then determine the target analysis strategy. Each analysis strategy includes an analysis path and multiple sub-tasks obtained by decomposing the data analysis task based on the data analysis methods represented by each node in the analysis path. Then, a code generation model can be used to automatically generate and execute the task code for each sub-task in the target analysis strategy, and a final analysis report is obtained based on the processing results of each sub-task. By guiding the task planning model to accurately decompose the data analysis task under the constraints of the knowledge graph, the accuracy and reliability of the processing results can be improved.