Abstract: Under the goal of carbon peak and carbon neutrality, the demand for low-carbon development of industrial parks is becoming more and more urgent. Scientific and reasonable evaluation of the low-carbon development level of industrial parks is a key step to promote the low-carbon development of industrial parks. From the five levels of low-carbon industry, energy resource utilization, pollution reduction and carbon reduction, low-carbon infrastructure, and long-term management, 24 indicators were selected to construct a low-carbon development evaluation index system for industrial parks. The analytic hierarchy process (AHP) combined with the improved criteria importance through intercriteria correlation (CRITIC) method was used to assign weights to indicators, and the technique for order preference by similarity to ideal solution (TOPSIS) - grey correlation analysis model and obstacle degree model were used to analyze the low-carbon development level and obstacle factors of A park in East China from 2018 to 2022. The results showed that the low-carbon development level of A park was increasing year by year from 2018 to 2022, among which the low-carbon development trend of low-carbon industry, energy resource utilization and long-term management criteria was better, while the low-carbon development of pollution reduction and low-carbon infrastructure criteria was hindered. From the perspective of obstacle degree, pollution reduction and carbon reduction, and energy resource utilization in the criterion layer were the key obstacle factors restricting the improvement of the low-carbon development level of A park. Among them, the carbon emission per unit of industrial added value, the comprehensive energy consumption per unit of industrial added value, the reuse rate of industrial water, the wastewater discharge per unit of industrial added value, and the proportion of green buildings in new industrial buildings were more prominent.