The bottle enters into the filling part of 3-in-1 machine through screw by convey chain. The filling valve acted by the cam can realize up and down. the filling valve opens and begins filling when it moves down and touches the bottleneck, the filling valve move up and leave the bottleneck when it finishes filling, the full bottle is transferred to the capping part through hold neck transition poking wheel. The guard plate holds bottle upright not rotating. The screw capping headkeeps in revolution and autorotation. It can finish a whole capping course including catching, pressing, screwing, discharging through the action of the cam. The full bottle is transferred to bottle outlet conveyor to the next process through poking wheel.