Abstract: In order to realize the more economical probability teleportation of the 4 particle cluster state, a teleportation scheme using 5 particle cluster state as the quantum channel is proposed. Based on the solution of disentanglement- teleportation-reconstruction method, before sending information, the sender does a CNOT operation and the projection measurement of state information.And then the disentanglement information is sent to the receiver. In this process, the sender needs to carry on the two Bell state measurement and single particle measurement, the receiver according to the sender's measurement results, the corresponding operation, obtains the solution entanglement information state. At last, the auxiliary particle is introduced to reconstruct the original unknown information state,The probability of successful transmission is . The program can be a good way to deal with the general eavesdropping.

Key words: Controlled-Not gate