The invention provides an electric apparatus unit which can be easily assembled. The electric apparatus module includes an upper case, a lower case assembled with the upper case and having an opening, an electric apparatus unit accommodated in the upper case and the lower case, a connection unit including a board, a connector mounted on the board and connected to the electric apparatus unit, and a connecting member, a first end of the connecting member attached to the board and a second end of the connecting member guided to outside of the lower case through the opening, and an assembling portion provided on the connection unit and the lower case and assembling the connection unit to the lower case, the assembling portion enabling the board to move along surficial direction of the board and restricting the board to move in a direction perpendicular to the surface of the board.