Abstract: A combination bed includes a front frame, a rear frame detachably connected with the front frame, and a connecting frame mounted between the front frame and the rear frame so that the front frame and the rear frame are supported and combined together by the connecting frame. The front frame includes a front support and two front bars each having a first end pivotally connected with the front support and a second end connected with the rear frame. The rear frame includes a rear support and two rear bars each having a first end pivotally connected with the rear support and a second end connected with the respective front bar. Thus, the front frame, the rear frame and the connecting frame can be connected and disconnected so that the combination bed is assembled and disassembled easily and quickly.