The nucleic acid automatic mixing and pipetting machine adopts the DOBOT CR3 collaborative robot to automatically complete loading and unloading, opening and closing the lids, mixing, pipetting, and cutting. The accuracy can be controlled at the level of 0.002 ml, achieving 4-in-1 versatile automated pipetting. The robotic solution meets the production needs of mixing and pipetting in healthcare, saving the workforce with archived, queried, and accurately controlled data.