Slot antenna and terminal

The embodiment of the invention discloses a slot antenna, which is applied to a terminal with an all-metal border. The slot antenna comprises a metal bottom plate, a dielectric substrate, a first single-ported open straight slot, a second single-ported open straight slot, a ground lug, a feeding module and a matching circuit, wherein the dielectric substrate is located in a metal middle frame; the first single-ported open circuit straight slot and the second single-ported open circuit straight slot are formed in the upper end of the metal bottom plate; the ground lug is arranged between the single-ported open circuit straight slot and the second single-ported open circuit straight slot; the feeding module and the matching circuit are arranged at the upper end of the dielectric substrate; the open circuit direction of the first single-ported open circuit straight slot is opposite to the open circuit direction of the second single-ported open circuit straight slot, and extends to the edge of the metal bottom plate; a gap is formed between the metal middle frame and the metal bottom plate; the first single-ported open circuit straight slot and the ground lug form a first coupled radiation slot; and the second single-ported open circuit straight slot and the ground lug form a second coupled radiation slot. Meanwhile, the embodiment of the invention further discloses a terminal.