Abstract: With the advancement of intelligent coal mine construction, the digital transformation of the coal industry has been deepening, and measuring the market space of digital transformation of the coal industry is of great significance to the digital transformation of the coal industry. This study aims to construct a framework and methodology system for measuring the market space of digital transformation in the coal industry, in order to quantify its development scale, structural characteristics and its uncertainties, and to provide decision support for the transformation of the coal industry. Firstly, the digital transformation market space measurement method is proposed. Secondly, the number of coal mines in China in the next six years is predicted based on gray prediction and Ermitage interpolation, and the participation in the intelligent construction of coal mines as well as the investment proportion of coal mines of different scales are measured with the help of ICT technology, on the basis of which, the magnitude of the digital transformation space of the coal industry is clarified, and the structure of the digital transformation market space of the coal industry is analyzed. Finally, based on the theory of scenario analysis, it explores the uncertainty factors of the digital transformation market space of the coal industry, and proposes strategies to enhance the digital transformation space of the coal industry. The conclusion of the study shows that the reduction in the number of coal mines and the trend of scale concentration jointly drive the demand for intelligent investment, and ICT technology cost reduction and policy guidance are the core driving force for market growth. In the future, it is necessary to strengthen the construction of digital capacity in coal mines, optimize the mechanism of cross-regional technological synergies, and cope with the policy fluctuations and technological risks through dynamic scenario planning. The results of the study provide a research framework for the spatial analysis of the digital transformation of the coal industry, and help the coal industry realize efficient, green and safe transformation.