Abstract: 【Purpose/significance】Constructing a method for identifying the evolution path of strategic emerging industry policies and technology themes, which provides important references for the formulation and optimization of industry policy, as well as the layout and development of technology.【Method/process】Using the policy and patent texts of the new energy vehicle industry as the dataset, a comprehensive approach combining LDA model and Word2Vec algorithm is employed to extract policy and technology topics, and the similarity calculation is used to identify the evolution path and interaction relationship of industry policy and technology【Result/ conclusion】The focus of policy has shifted from early demonstration and promotion to key technology research and all-round improve⁃ ment of the industrial chain, and technology research has gradually deepened in the direction of battery efficiency mining, charging in⁃ frastructure intelligence and power system performance improvement. A synergistic relationship between policy and technology re⁃ search has been formed, but it is necessary to improve the matching degree of technology research in the fields of intelligence, hydro⁃ gen energy, and hybrid power, and maintain close synergy with policy orientation to enhance the overall resilience and safety level of the industry.【Innovation/limitation】This article effectively explores the interactive evolution relationship between industrial policy and technology development, which can provide a new perspective for industrial policy improvement and technology layout optimiza⁃ tion. The limitation is that more data sources need to be included for multi-dimensional analysis, and the theme model needs to be fur⁃ ther optimized.