A pipette device system and micropipette thereof is disclosed. The micropipette is disposed on the pipette device system and includes a pipe body, a rotating shaft and a swing member. A rotating hole and an engaging hole of the pipe body are connected with each other. A receiving hole and a discharging hole are formed in the pipe body and connected with the rotating hole. The rotating shaft is disposed in the rotating hole and has a connecting hole and a switching hole. A first connecting opening and a second connecting opening of the connecting hole are respectively connected with the receiving hole and the discharging hole. The switching hole has a third connecting opening and is connected with the connecting hole. The swing member is fixed on two ends of the rotating shaft. The present invention can implement the multiple micro-dispensation based on the simple structure and movement manner.