Research into appropriate plan of storage space is not a new issue. Several journals includestudies of storage space Allocation plan as the main topic whereas most of them focus on the subject of distribution center rather that of large scale object warehouse and few of them are to discuss the issue of storage space distribution from warehouse attendant¡¦s viewpoint.The cost of crane operation of large scale object is high; hence, inappropriate planning of large scale object may increase turning frequency of order picking. Due to this, storage operation speed will slow down and cost will rise, and thus will make it less competitive. Warehouse attendants always allot present storage by their own experiences; thus, they rarely transform their experiences into principles. If the principle of inbound operation can be documented by characters and if the implicit knowledge of warehouse attendants can be expressed explicitly, then storage department will have an efficient way of inbound operation for reference. By the method of Storage allocation strategy, this study is to analyze the necessary information of storage plan. It draws up several principles of storage assignment; according to the different production conditions the variable principles will be assigned to assist storage space assignment and ways of piling. By this way, it decreases frequency of using large scale object hanging machines and thus speeds up shipping simultaneously. Finally, this study performs a simulated analysis of inbound operation via simulation software. By this way of simulation, it makes comparisons between different experimental results. It is proven that this way can help warehouse attendants to choose appropriate mode of inbound operation according to the different orders.