The invention provides an electrical connector and a backlight module using that electrical connector. The electrical connector includes a body and two conducting lines. The body is provided with first and second connecting portions, the former of which has a first connecting surface and the latter has a second connecting surface. An invariable relative angle is defined between the first and second connecting surfaces. The conducting lines are coated on the first and second connecting surfaces without crossing each other. The backlight module includes a light guide plate, two LED light bars mounted to two respective light receiving edges of the light guide plate, and an aforesaid electrical connector connecting the LED light bars. The electrical connector is electrically connected with the LED light bars and fixes their relative positions. Besides, it is easy to install the electrical connector to connect the LED light bars firmly.