Jiangsu province’s forestry industry offers valuable insights for resource-poor regions in China. This study aims to determine the competitiveness of different forestry sectors in Jiangsu province and identify the industrial structural changes in this context. The shift-share method is employed to analyze the primary, secondary, and tertiary forestry industries, encompassing 17 sub-sectors, and investigate the industrial regional types. By combining location quotient values and inter-sector characteristics, the leading sectors are identified. The findings reveal that the Kuznets facts and the Engel effect in the industry structure have facilitated the process of increasing the value of ecological products; this is particularly evident between 2002 and 2018, as well as in 2021. Within the primary forestry industry, the Flower cultivation sector and the Economic forest product sector emerge as the leading sectors, outperforming the national growth effect by 7.18 and 1.02 times, respectively. In the secondary forestry industry, the Wood processing sector, the Furniture manufacturing sector, the Wood paper-making sector, and the Non-timber forest product sector mostly show the Progressive types as the leading sectors from 2006 to 2020. The tertiary industry’s regional types fluctuate from the Progressive type to the Medium type, with the Forestry tourism sector, the Ecological service sector, and the Non-forestry service sector displaying leading industry characteristics. Recommendations for enhancing inter-sector integration include fostering collaborative agglomeration, unlocking the potential value of wetland resources, and strengthening cross-industry integration through e-commerce clusters to improve the forester’s e-commerce operational capabilities.
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