Abstract：Based on the key points of definition on the engineering structure reliability, the research and application status of the reliability evaluation system, the durability evaluation, the serviceability evaluation and the safety evaluation of the existing service Highway bridge were expounded in view of evaluation guide and research results. Considering the characteristics of the actual bridge structure and the service condition and the requirement for maintenance, the problems for above contents and the further improved contents were point out. By comparing the characteristics and the points of the reliability assessment content at home and abroad, the connotation of the reliability evaluation of the service Highway bridge was interpreted, and a specific reliability evaluation system of the service Highway bridge was put forward, and the contents of durability evaluation, applicability evaluation and safety assessment were complemented respectively. At last, the advanced and comprehensiveness of the proposed reliability evaluation system were discussed.
