Industrial policy is an important driver of industrial development. Taking the Shuangcheng Economic Circle of Chengdu-Chongqing area as the research area, an in-depth study on the driving effect of industrial policy was conducted based on knowledge graph technology, in order to clarify the important role of industrial policy in promoting industrial structure optimization, regional balanced development and economic transformation and upgrading. The industrial policy knowledge map of the region was constructed based on regional differences, time evolution characteristics, policy orientation and other core factors. Then, combining with the comprehensive industrial development level of the region, the visualization and retrieval functions of the knowledge map were utilized. The PMC I(policy modeling consistency) index was used to evaluate 496 policy samples, and the driving effect and driving mechanism of industrial policies were further analyzed. The results show that the industrial development trend in the study area is stable and good on the whole, and the PMC composite index scores of industrial policy samples in all regions have reached an acceptable level or above. Among them, the essence of policy content, the ability of forward-looking planning and the construction of guarantee and incentive mechanism are the core elements of the driving effect of industrial policy. Accordingly, countermeasures and suggestions are put forward from the perspective of policy optimization and perfection, evaluation and adjustment.