The invention discloses a design method for a printed circuit board which includes: firstly capturing the property information and the layout modes of all the connection pins in the electric elementsof the printed circuit board; calculating the permutation quantity of the electric elements on a two-dimensional system according to the layout modes and obtaining a first restraining area according to a preset operation rule so as to divide the electric elements into four area blocks; secondly, arranging the wiring directions of the connection pins in each area block; then, setting an area corresponding to the connection pin with no electric property as a second restraining area; then arranging through holes on the areas of the electric elements except the first and the second restraining areas according to the captured property information of each connection pin and a through hole arrangement rule; finally, carrying out line connection operation between the connection pins and the corresponding through holes according to the captured property information of each connection pin and the arranged wiring mode of the connection pins, thus improving the wiring efficiency.