Abstract: This thesis proves that the direction of technological remodification of timber relay yard in the high mounain forest area of the southwest should fully utilize the slopes,and adopt various appropriate technique to perform the unloading,piling and hot loading operation.The plane layout introduces two patterns,i.e,"straight line type" and "fan-shaped type".Theoretically this thesis also approaches the specific slope, theoretical length of loading platform and the relation between diameters of fender skids and relevant variables.