An antenna structure, configured to be applied to a communications terminal, comprising a first antenna radiator, a second antenna radiator, a first impedance matching circuit, a first signal source, and a second signal source; wherein the first antenna radiator and the second antenna radiator are stacked or disposed relative to each other, and there is a gap between the first antenna radiator and the second antenna radiator; a length of the first antenna radiator is greater than a length of the second antenna radiator, and a resonance band of the first antenna radiator is less than a resonance band of the second antenna radiator; a first end of the first antenna radiator is grounded, a second end of the first antenna radiator is an open end, the first antenna radiator is provided with a first feed point, the first feed point is connected to a first terminal of the first signal source through the first impedance matching circuit, and a second terminal of the first signal source is grounded; and a first end of the second antenna radiator is grounded, a second end of the second antenna radiator is an open end, the second antenna radiator is provided with a second feed point, the second feed point is connected to a first terminal of the second signal source, and a second terminal of the second signal source is grounded; wherein the first impedance matching circuit comprises: a first inductor and a first capacitor, a first terminal of the first inductor is connected to the first feed point, a second terminal of the first inductor is connected to a first terminal of the first capacitor, and a second terminal of the first capacitor is connected to the first terminal of the first signal source; and the first impedance matching circuit further comprises: a second inductor and a second capacitor, a first terminal of the second inductor is connected to the second terminal of the first inductor, a second terminal of the second inductor is grounded, a first terminal of the second capacitor is connected to the first terminal of the second inductor, and a second terminal of the second capacitor is grounded. the first antenna radiator and the second antenna radiator are stacked or disposed relative to each other, and there is a gap between the first antenna radiator and the second antenna radiator; a length of the first antenna radiator is greater than a length of the second antenna radiator, and a resonance band of the first antenna radiator is less than a resonance band of the second antenna radiator; a first end of the first antenna radiator is grounded, a second end of the first antenna radiator is an open end, the first antenna radiator is provided with a first feed point, the first feed point is connected to a first terminal of the first signal source through the first impedance matching circuit, and a second terminal of the first signal source is grounded; and a first end of the second antenna radiator is grounded, a second end of the second antenna radiator is an open end, the second antenna radiator is provided with a second feed point, the second feed point is connected to a first terminal of the second signal source, and a second terminal of the second signal source is grounded; wherein the first impedance matching circuit comprises: a first inductor and a first capacitor, a first terminal of the first inductor is connected to the first feed point, a second terminal of the first inductor is connected to a first terminal of the first capacitor, and a second terminal of the first capacitor is connected to the first terminal of the first signal source; and the first impedance matching circuit further comprises: a second inductor and a second capacitor, a first terminal of the second inductor is connected to the second terminal of the first inductor, a second terminal of the second inductor is grounded, a first terminal of the second capacitor is connected to the first terminal of the second inductor, and a second terminal of the second capacitor is grounded.