Abstract: By drawing up the detailed social accounting matrix of Shanxi province, this paper studies the structure of coal industry of Shanxi and the relationship between Shanxi’s coal industry and other industries by multiplier model.After the decomposition of the multiplier model, it is found that the transfer net effect and the closed loop net effect of the coal industry are called downward trend.And it is illustrated that the driving effect on the economy of Shanxi province and other industries is declining.The industries that have been affected by the impact of the coal industry in each year are different.Through structured analysis, the structured path between these industries is obtained, including 4 direct paths and 3 indirect paths.On this basis, this paper evaluates the adjustment of industrial structure in Shanxi province and puts forward some policy suggestions.