During the course of transformation and upgrading of the industry, it's vital to establish the proper index system of evaluating the corresponding result. In the paper, based on the present situation of Beijing-Tianjin-Hebei Integration, the principle of designing the evaluating index system is analyzed, then the system of evaluating the result of transformation and upgrading of steel industry in Hebei Province on the background of Beijing-Tianjin-Hebei Integration is established which consists of three dimensions, the effect on environment,the industrial contribution to provincial economy and sustainable development of the industry itself. Thus the structural method of evaluating the result is advanced. According to the index system, the principle and the route of applying the evaluation is proposed so that the practice can be inspired by it.