Abstract: In order to objectively evaluate bus service level and improve bus service quality ,the second-level evalua-tion index system was established by the viewpoints of system based on the analysis of the features between evaluation ob-ject (bus service level) and service object (passenger) .A comprehensive evaluation model was set up with the combina-tion of AHP and the improved fuzzy algorithm to evaluate each layer of evaluation index and the general bus service level . The software yaahpV0 .5 .3 was applied to implementing the AHP method to calculate the weight of evaluation index .Fi-nally combining with the bus passenger questionnaires of Guangzhou ,the comprehensive evaluation model was applied to evaluating the bus service level through the empirical analysis .It shows that this model can be applied to the evaluation of bus service level and efficiently avoid the subjective randomness in the process of evaluation with more reasonable evalua-tion result obtained .