Using a five-particle entangled state as quantum channel, the separation of quantum information of four particles W state was achieved. The sender Alice sends 2, 5 particles to Bob and sends 3 particle to Charlie. The sender Alice conducts von-Neumann measurement to six particles in hand and tells Charlie and Bob measurement results. The controller Charlie makes projection measurement to single particle in hand, then tells Bob of the measurement result. According to the results, Bob makes the appropriate operating of unitary transformation to two particle, plusing two auxiliary particles, conducting the appropriate operation of quantum gates. Through all of these operations Bob can rebuild four particle W state which is to be sent. The success probability of this project is 100%, and what’s more, it needs less particles and is easier to be accomplished.