Dual-aperture sight with quick sighting function

The invention discloses a dual-aperture sight with a quick sighting function, which comprises a sighting board and a sight bead which are arranged on a gun, wherein the sighting board and the sight bead are connected with the gun through a bracket respectively; the sight bead comprises a sight bead retainer on the outer circle and an aperture ring in the middle; the middle of the aperture ring is an aperture; the sight bead is also provided with a direction regulating mechanism; the middle of the sighting board is a second aperture, and the aperture of the second aperture is less than that of the aperture at the middle of the aperture ring on the sight bead; the direction regulating mechanism is provided with at least two regulating rods; one end of each regulating rod is movably connected with the sight bead retainer through a micrometer screw, and the other end of the regulating rod is connected to the aperture ring; the regulating rod is also provided with a sliding sleeve; and the surfaces of the aperture retainer and regulating mechanism of the sight bead and the sighting board are coated with fluorescent materials. As long as the aperture on the sight bead, the second aperture on the sighting board and a target are aligned and superposed when a user is sighting, the target can be sighted and hit, and the position of the aperture is not changed because of personal factors of the sighting people as well as external factors, thereby reducing the sighting difficulty and improving the shooting accuracy rate.