研究WDM網絡的生存性問題，提出了一種聯合優化的自適應專用通路保護算法。該算法根據網絡拓撲信息和資源使用情況動態調整鏈路權值，并在此基礎上為到達業務連接請求，同時找到一對鏈路分離的工作通路和保護通路，而且保證二者占用資源總量最少。與文獻中已有算法相比，JOA可以降低算法的時間開銷，同時還有利于全網負載均衡和少用資源，從而可以有效提高全網資源利用率，進一步降低業務連接請求的阻塞率。通過仿真將所提算法與傳統算法進行了對比，給出了仿真結果。A joint optimal adaptive protection algorithm (JOA) is proposed to establish dependable connections for dynamic arriving connection requests in WDM networks. JOA first adjusts the cost of links according to the current state of network adaptively, and it then computes a pair of primary path and backup path for each connection request simultaneously. JOA attempts to perform optimization on the path-pair selection, and to achieve efficient resource utilization. Based on dynamic traffic with different load, the performance of JOA has been investigated against some traditional approaches via simulations. The results show that JOA has a better performance than other schemes.