The invention discloses a global load balance method and system based on active-active architecture and a scheduling server. The system comprises a first data center and a second data center of the active-active architecture, and the scheduling server. WEB layer switches of the first data center and the second data center are connected with the scheduling server through the Internet; the scheduling server is used for periodically obtaining resource condition of WEB servers of the first data center and the second data center from the WEB layer switches of the first data center and the second data center, determining domain names after receiving domain name resolution requests sent by users, searching IP addresses and the resource condition of the servers mapped by the domain names from a DNS resource recording table, screening and returning the IP addresses of the servers, and marking the WEB servers of the data center as fault when the fault occurs in one data center. According to the method, the system and the scheduling server, the global load balance service can be provided for a cluster service node with the active-active disaster recovery architecture.