An electric operation apparatus capable of opening interiors of front and rear portions of an apparatus main body frontward and rearward to make it easy to carry out assembly and maintenance inside the main body. Front and rear pivot shafts are provided on inner side surfaces of side plates of the main body so as to extend in the left-right direction of the main body. Front and rear panels are openable and closable relative to the main body by being pivoted about the pivot shafts, with their engagement recesses in engagement with the pivot shafts. The front and rear panels cover the main body when they are in closed states, and open the interior of the main body when they are in open states. The front panel is opened by being pivoted rearward, whereas the rear panel is opened by being pivoted forward.