This article concentrates on finite time extended dissipative issue for neutral semi-Markovian jumping system (S-MJSs) in the framework of event-triggering control (ETC) policy. To begin with, ETC strategy is presented, which can both greatly alleviate communication burden and keep a satisfying closed loop performances. Novel sufficient conditions are moreover expounded to ensure finite time extended dissipative performances of neutral S-MJSs. By adjusting the parameter matrices in the extended dissipative concepts, some relative performance indexes, including L 2 ā L ā , H ā , passivity as well as (Q, S, R)dissipativity performance, could be gotten. An instance is demonstrated in order to verify the presented work being highly effective and correct of the expounded results.