The Scale operation of rural land is the important way to develop the modern agriculture and build up the new countryside.Sanming City is an essential part of the straight economic zone and the hinterland of the coastal ports.It has rich agriculture resources,and it also has obvious effectiveness and its features in the scale operation of the rural land.The article analyzes the scale operation of the rural land in Sanming City from the view of the scale economics and the supply and demand theory in order to build up the scale operation models.And it is also hoped to use the advantage of it fully,develop the production,promote the whole economic quality of the countryside in the straight economic zone,and fasten the building of the modern countryside.