Multi-channel pipette capable of being adjusted in variable distance mode

The utility model relates to the technical field of test instruments, and discloses a variable-distance adjusting multichannel pipette which comprises a pipette shell, a liquid suction device, a distance adjusting shell, a movable positioning groove, a distance adjusting mechanism, a movable channel, an adjusting hose, an adjusting rotating rod body and a liquid suction gun head, the distance adjusting shell is fixedly connected to the bottom of the pipette shell, and the pipette suction device is installed in the pipette shell. According to the pipette disclosed by the utility model, the liquid suction device is arranged in the pipette shell and is matched with the adjusting hose to be communicated with the movable channel, so that the liquid suction gun head can achieve a better liquid suction and sampling effect, and when the rotating rod body is rotated and adjusted, the rotating rod body can move left and right on the distance adjusting shell and can extrude and drive the distance adjusting mechanism to