The principle of the quantum switch is introduced by means of entanglement swapping. With the help of quantum switch operating entanglement swapping one by one, quantum correlations between Alice and Bob can be established. Adding entangled particle generator into conventional interconnection equipments, such as switch, and keeping quantum correlations between adjacent devices in the network leisure time, one can upgrade the classic internet to quantum teleportation internet. In quantum teleportation internet, the routing is selected also by utilizing the routing algorithm of classical internet. The routing selection can be synchronized with the establishment of quantum channel in static routing strategy. When the dynamic routing strategy is selected, quantum switch first selects a route to generate a router sequence table and then operates entanglement swapping one by one according to the table to establish the quantum correlations between Alice and Bob.