There is provided a board layout check apparatus for checking whether or not a guard wiring is appropriately formed, wherein a place which must be corrected is clearly displayed.The board layout check apparatus includes a printed board obtained by forming a guard wiring on a printed wiring layer, a check target wiring detecting unit which detects a check target wiring the influence of noise of which must be reduced from the printed wiring layer, a guard wiring exemption region calculating unit which calculates a guard wiring exemption region in which no guard wiring is formed for the check target wiring, a guard wiring detecting unit which detects a wiring portion in which a guard wiring is formed for the check target wiring, an error determination unit which determines whether or not the guard wiring is appropriately formed in a region except for the guard wiring exemption region, and an output unit which outputs a wiring portion determined as an error by the error determination unit.