Abstract: In wireless communication, fading over wireless channels decreases the reliability of the transmission and impact the quality of communication. Cooperative diversity offers an effective countermeasure against fading due to multi-path propagation in wireless medium, so far cooperative diversity has been widely studied and applied. For best use of wireless channels, the paper proposes user cooperation based on opportunistic network coding. The scenario under consideration is one in which three “partners”Node A, Node B and Relay node R-cooperate in transmitting information to base station D. the outage probability performance of non-cooperative communication scheme, traditional user cooperative scheme and opportunistic network coded user cooperative scheme are analyzed. Theoretical analysis and experimental simulation show that in existing fading phenomenon, cooperative scheme with network coding is better than traditional user cooperative and non-cooperative scheme.