A novel internet multicast routing protocol is presented to possess efficiency and effectiveness for multicast packet routing with short delay, high throughput, resource utilization and scalability for a single multicast group g. The protocol has two features: (1) Multiple Shared-Trees (MST) are configured to provide efficient, dynamic and quality multicast routing; (2) Anycasting approach is applied by forming the tree roots into an anycast group so that the multicast packets can be anycast to the nearest node at one of the shared trees to achieve the best routing service for the packets. The performance of the MST protocol is analyzed through extensive simulations and compared with well-known source tree and shared-tree routing.