This article takes A-share listed manufacturing companies in China as the research sample, and the data mainly comes from Wind database, CSMAR database, and annual reports of listed companies. Due to the time constraints of the sources of carbon emissions from listed companies and the level of financing constraints in the manufacturing industry, this article selects the period from 2000 to 2022 as the research interval. There are a total of 26099 observations, including variables such as id, year, CO2, CO2 growth rate, fossil fuel, emissions from biomass fuel combustion, Escaping emissions from raw material extraction, Escaping emissions from oil and gas systems, Indirect carbon emissions from power transfer in and out, Production process emissions, KZ, Eastern, Western, Central, High tech industries, Heavy polarization industries, size, lev, ROA, p/b ratio, TobinQ, and Employ. In order to avoid the influence of outliers, this article refers to existing research practices and processes the raw data as follows: (1) using EXCEL to remove financial industry data; (2) Use Excel tools to remove samples with delisting risks and delisting warnings; (3) Use STATA16.0 to eliminate missing values in the sample; (4) Use EXCEL tools to dimensionless some data using methods such as natural logarithm and normalization; (5) Use EXCEL tools to perform tail reduction on some data.