Abstract: Based on the industrial carbon emissions data of each province in the Provincial Emission Inventory released by China Carbon Accounting Database (CEADs) and the input-output data in the Input and Output Table of each province from 2007 to 2017, the EIO-LCA (input output life cycle assessment model) was used to calculate the hidden carbon emissions of the coal mining and preparation industry production chain in each province of China, and to identify the final demand and industry sectors that lead to significant hidden carbon emissions. Research had found that the direct carbon emission intensity of China's coal mining and preparation industry showed an overall trend of first decreasing and then increasing; in 2017, the total hidden carbon emissions in Shanxi, Inner Mongolia, Heilongjiang, Zhejiang and Beijing were higher than the total direct carbon emissions; the top three provinces in terms of hidden carbon emissions from coal mining and preparation industry caused by final demand in 2017 were Shanxi, Inner Mongolia and Shaanxi; the hidden carbon emissions contribution of coal mining and preparation industries in various provinces had been concentrated year by year in coal mining and preparation industry, electric heating production and supply industry, and metal smelting and rolling processing industry.