The utility model discloses a quick connector for a heavy-load weighing, tension and pressure sensor. The quick connector is a box body; a through opening is provided in the middle of the box body; a threaded hole and a notch communicated with the through opening are opened on the box body; and the threaded hole and the notch are arranged oppositely. The box body is enabled to connected with a strain body of a the sensor via the threaded hole, a weighed object is then connected via a bolt, the bolt is clamped inside the notch, the head of the bolt drops in the through opening, the nut on the bolt is fastened, and reliable connection between the strain body and the weighed object can be realized; the nut is loosened, the bolt is removed from the notch, and the strain body of the sensor and the weighed object can be separated. The quick connector for the heavy-load weighing, tension and pressure sensor is simple in structure, convenient in use, and can realize quick connection and separation between the heavy-load sensor and the weighed object.