Before accurately evaluating the current situation of a regional road network's guide sign system, the current situation should firstly be investigated and relevant data should be collected. Then, aiming at the existing problems, an evaluation structure model was constructed. The criterion layer of the model consisted of three main factors, such as correct selection of information, no interference and continuous information, while the scheme layer of the model was made up of ten small indicators. Then, the method of AHP was used to match the corre- sponding weights of each index, and the score of the road network-level guide sign system could be calculated with its current situation evaluated. Based on the evaluation results, the paper further evaluated the strength of the revamping. Indicator sign system of single road can also be evaluated with the same method, and evaluation results of road level may guide its construction and transformation. The reliability and applicability of the evalu- ation index system were verified by the case study of Huangpu District, which proved that the evaluation system could make a scientific and reasonable evaluation. AHP method is widely used in engineering, industry, manage- ment, commerce and other industries, but there are not many studies on the evaluation of guiding sign system, so the study has a certain foresight and reference.