A contact terminal fixing construction including a first fixing portion and a second fixing portion which are mounted on a board in spaced relation to each other. When a distal end portion of a contact terminal is moved obliquely relative to the surface of the board, the first fixing portion engages this distal end portion. The second fixing portion includes a pair of claws, and a proximal end portion of the contact terminal is fitted into a space between these claws, and is engaged with the second fixing portion. The contact terminal has a limitation portion for limiting the movement of the contact terminal in a direction of a length thereof.