The bridge population in Korea was already large and ageing. At that time, little consideration was given to assess the bridge performance with safety. This situation may lead to loss of maintenance cost at a national wide due to no considerable strategy based on safety of the bridge. Therefore it is growing awareness that requirement of long-term bridge performance evaluation for bridge management in the future, including application of LCC in Korea. However most of Korea bridge management system has not considered performance degradation with safety to evaluate bridge condition. To derive the optimum maintenance scenario, it is needed to analyze safety of bridge caused by deterioration but standardized safety deterioration models were not available in general. So under these circumstances, the standardization of performance degradation and BMS with consideration of safety is immediately necessary to develop. In this study, the current status of bridges in Korea has been investigated through arrangement of safety variation with/without maintenance activity. Also we have developed practicable performance degradation model classified by some typical type of bridges and members to derive optimum maintenance scenario considering safety. The model has been developed based on analytical/computational framework for statistical regression. And the revision of Bridge Management System have considered safety model to manage bridges efficiently.