The industrial structure is interrelated to resources and environments. The harmonious relation between the economic benefit and the environment is the principle to distinguish whether the industrial structure should be readjust. The resource base is the basic condition of the industrial structure and the environmental capacity restricts it. But, in fact, the industrial structure is irrelevant with the condition of the resource sometimes in our country; especially the environment pollution is ignored in the development of the economy. For decision makers, it is difficult to judge the rationality of the industrial structure only by qualitative analyses, and quantitative analyses are more important. In the paper, an appraisal model of industrial structure is put forward and applied to Huairou County, Beijing. The rational appraising model of the industrial structure is determined by the sum of resource support index, environmental capacity index and economic benefit structure index. From the series results of ten years from 1989 to 1997, we can find that the trend of the industrial structure tends to be rational. The main problem of Huairou County is a lack of resources. According to the results of the model analysis, Huairou needs to adjust its industrial structure by developing tour industry, and beverage industry, instead of heavy industry, in the future.