An antenna, comprising a first feed point, a second feed point and a first grounding point and a metal body; wherein the metal body comprises a main body and a frame structure connected with the main body; the main body and the frame structure enclose a space to form a receiving area; the frame structure is provided with two slots spaced apart on a bottom thereof; the two slots divide the frame structure into a first frame, a second frame and a third frame; the second frame and the third frame are disposed respectively on two sides of the first frame; the first feed point and the second feed point are spaced apart from each other in a same side of the main body; the first grounding point is disposed in the receiving area; the first feed point is electrically connected with a first contact point on the first frame; the second feed point is electrically connected with a second contact point on the second frame; the first grounding point is electrically connected with a third contact point on the first frame, and is also electrically connected with a fourth contact point on the main body; and an electrical connection body comprising the first feed point, the first contact point, the third contact point, the first grounding point, and the fourth contact point constitutes a first antenna, and an electrical connection body comprising the second feed point, the second contact point and a junction point of the second frame and the main body constitutes a second antenna, wherein the first grounding point is disposed adjacent to the second antenna; wherein the antenna further comprises: a first matching circuit connected in series between the first grounding point and the fourth contact point; a tuning inductor, the first matching circuit is connected in series with the tuning inductor between the fourth contact point and the first grounding point, and a second matching circuit between the fourth contact point and the second contact point; wherein the first matching circuit comprises a resistor-inductor-capacitor, RLC, circuit and a switch configured to control the RLC circuit, and the RLC circuit comprises a resistor, a capacitor and an inductor. the metal body comprises a main body and a frame structure connected with the main body; the main body and the frame structure enclose a space to form a receiving area; the frame structure is provided with two slots spaced apart on a bottom thereof; the two slots divide the frame structure into a first frame, a second frame and a third frame; the second frame and the third frame are disposed respectively on two sides of the first frame; the first feed point and the second feed point are spaced apart from each other in a same side of the main body; the first grounding point is disposed in the receiving area; the first feed point is electrically connected with a first contact point on the first frame; the second feed point is electrically connected with a second contact point on the second frame; the first grounding point is electrically connected with a third contact point on the first frame, and is also electrically connected with a fourth contact point on the main body; and an electrical connection body comprising the first feed point, the first contact point, the third contact point, the first grounding point, and the fourth contact point constitutes a first antenna, and an electrical connection body comprising the second feed point, the second contact point and a junction point of the second frame and the main body constitutes a second antenna, wherein the first grounding point is disposed adjacent to the second antenna; wherein the antenna further comprises: a first matching circuit connected in series between the first grounding point and the fourth contact point; a tuning inductor, the first matching circuit is connected in series with the tuning inductor between the fourth contact point and the first grounding point, and a second matching circuit between the fourth contact point and the second contact point; wherein the first matching circuit comprises a resistor-inductor-capacitor, RLC, circuit and a switch configured to control the RLC circuit, and the RLC circuit comprises a resistor, a capacitor and an inductor. a first matching circuit connected in series between the first grounding point and the fourth contact point; a tuning inductor, the first matching circuit is connected in series with the tuning inductor between the fourth contact point and the first grounding point, and a second matching circuit between the fourth contact point and the second contact point; wherein the first matching circuit comprises a resistor-inductor-capacitor, RLC, circuit and a switch configured to control the RLC circuit, and the RLC circuit comprises a resistor, a capacitor and an inductor.