A slide mechanism includes a main body, a slide body and an elastic member. The slide body is slidably connected to the main body. The elastic member is positioned between the main body and the slide body. The main body includes a base plate and two guide rails fixed on opposite sides of the base plate. The guide rails are elastic. A distance between the guide rails is less than a length of the elastic member in a normal state. Opposite ends of the elastic member are fixed to the guide rails, and a middle portion of the elastic member is fixed to the slide body, so that the elastic member remains bent between the guide rails.