The construction of road network in Guangdong province as a whole is changing from “laggard style” into “adaptability style” at such pivotal days. By analyzing the developmental actuality of various regions’ road network in Guangdong province, it establishes the system of evaluation index in adaptability, choose indexes according to road network service levels and density, which can be used to give directions to the adjustment and construction of regional road network and promote road network planning and economic development.