Abstract: Abstract: In this article, the coupling coordination into the microscopic research field of coal industry was introduced. The index system of the coordination of economic-resource-environment (ERE) in the coal industry and the calculating methods were put forward .It makes an empirical study and takes Shanxi Province as an example. The economic, resources and environmental development index of coal industry are analyzed respectively. Multidimensional measures are made for the coordinated development of subsystems, The results show that the coupling level of the ERE system in the coal industry is in the upward trend since 2005 to 2015, but it has been in the near-imbalance state of 0.3852-0.5228, and it shows a rising-down-rising fluctuation cycle, The level of coupling between economic, resource and environment is between mild mismatch and reluctance. The contradiction between economic resources subsystem and environmental subsystem is the main reason that restricts the overall coordinated development.