there is provided a component mounting inspecting apparatus which can automatically set a solder bridge inspection region and output an optimum inspection result of a solder bridge . the component mounting board inspecting apparatus for inspecting a solder bridge of an electronic circuit board , in which a plurality of electrode pads are formed at predetermined spaced intervals and cream solder is applied on the electrode pads , includes a mechanism for automatically determining a distance between adjacent electrode pads and a mechanism for automatically setting a solder bridge inspection point if the distance between the adjacent electrode pads is equal to or shorter than a threshold value .