Abstract: Good results can be realised for optimization of regio na l coverage satellite constellations by using Genetic Algorithm(GA) The calculat ion time is so long with using GA that it is discommodious to optimize a big con stellation. The Distributed Calculating (DC) taking advantage of the free calcul ating source of computer network can be used to solve this problem. DC models as well as the procedure are given. The example shows that the distributed GA is e fficient. The DGA method can also be generalized to other fields.