Aiming at the problem of limited transmitting information capacity resulted by restricted network bandwidth, introduces the distributed event-triggered mechanism, which a subsystem broadcasts its state information to its neighbors only when the subsystem local state error exceeds a given threshold. Studies the implementation of event-triggered distributed control strategy for networked control systems. First designs event-triggered scheme to guarantee the entire system asymptotic stability; then applies the obtained result to linear time-invariant systems; finally verifies the conclusions through the model simulation. The event-triggered mechanism reduces the amount of transmission information and the network load, and it improves the network transmission efficiency.