Abstract: In this paper,with PROLOG computer language for a logic program design, we study about managingthe dynamic database of trains,stutions and railwnys,seting up knowledge base of railway transport dispatch-ing,studying the reasoing rules about optimal dispetching,forcasting the load and unload time of trains withequal-dimensional new information models of the grey system. We realize the realtime dispetching of optimalgoal for trains. In the practice,we design the menus on the digitizer in otder to input train informations fastand easily,manage dynamic dainbase and automatic drawing chart of runing trains on ploter. So that, we fin-ho this study and give the modern management method and technique for open-pit mine.