Reactive scheduling is one of the solutions for scheduling in dynamically changing manufacturing system. However, most of study for reactive scheduling use centralized scheduler. It is necessary to discuss about decentralized scheduler to catch up with nowadays huge and complex manufacturing systems. Also, it needs to be allowed that most of real manufacturing system scheduling problems are multi objective. The proposed approach gives more accurate and wider ranged solution for scheduling used distributed genetic algorithm. The effectiveness of the proposed method is confirmed by preliminary computer simulation results.