A double-frequency coupled antenna with a metal frame comprises the metal frame, a printed circuit board (PCB) arranged in the metal frame, and an antenna unit, wherein the metal frame comprises a closed loop metal frame formed by a first frame, a second frame, a third frame and a fourth frame, the PCB comprises a circuit area and a clearance area, the antenna unit comprises a feed line and a coupling line, the feed line is connected with a feed source, the coupling line is electrically connected with the fourth metal frame, and two ends of the fourth frame are connected with a ground of the PCB to form a closed-loop radiation loop. According to the double-frequency coupled antenna with the metal frame, the metal frame is designed as a part of an antenna irradiator, and projection areas of the PCB of the antenna are reduced; the metal frame does not need slotting, by means of a coupled feeding manner, current of the antenna in the whole radiation loop can be more evenly distributed, and the problem that finger touch affects properties of the antenna of mobile terminals is solved; by means of a slotting manner, the requirement of the antenna for PCB clearance environments is reduced, and thus, the antenna is applicable to more complicated mobile phone environments.