Disclosed is a layout method for reducing the buffer inserting number. The method mainly aims at reducing the number of buffer elements to be inserted so as to reduce the delay and congestion degree. In a layout process, a connecting line with the length larger than a key buffer length is selected, whether elements connected with the connecting line and peripheral elements of the elements satisfy moving conditions of the layout method or not is sequentially judged, and if yes, the elements are moved. The operation is repeated until lengths of all the connecting lines are enabled to be smaller than a preset maximum length by moving the elements. The buffer elements are inserted among the connecting lines with lengths exceeding the key buffer length now, and the step is repeated until finish of layout.