This research based on the casting steel factory as the research object, analyzing the present flow process and finding the flow problems in the factory .The techniques are integrated Work Study with Facility Layout to analyze the manufacture procedure and layout. The research purposes are to merge the theory concept and real operation of real factory which using Work Study and Facility Layout analytical approaches. The research conclusions are machine layout and process flow are no change, but some hidden problems are need to be improved which include how to human resource allocation and Jig template re-layout planning.