This study uses a word vector model to construct"policy content reproduction"coefficients to measure the degree of refinement and updating of the higher-level"14th Five-year Plan"in the field of emergency management by local gov-ernments,and then examine the pattern and influence mechanism of the change of the policy content of the five-year plan system in China based on the data of prefectural-level municipal empirical analyses.The empirical results show that there are obvious differences in the reproduction level of policy content among local governments;the severity of problems,pres-sure from superiors,and the speed of preparation all have a significant impact on the reproduction level of policy content;in particular,the impact of the speed of preparation shows a"U-shaped"characteristic,with the texts at the beginning and the end of the planning period showing a higher reproduction level.
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