The invention discloses a content delivery method and a content delivery system based on large-scale network nodes. The method comprises the following steps: according to content to be delivered, taking a node with the content stored as a source node, and storing the node in an active node set; looking for all adjacent nodes of active nodes, acquiring the degree information of the adjacent nodes, and dividing the adjacent nodes; pushing the content to the nodes with higher degree according to the division result of the adjacent nodes, and putting the nodes in the active node set; and repeating the second and third steps until the content is pushed to all the nodes or a cut-off condition set by a user is satisfied. All the nodes can be traversed quickly. Under the constraint that each node can push the content to a limited number of nodes each time, the efficiency of content delivery by ten million or more nodes is improved. The purpose of efficient and fast network information pushing is achieved.