The present invention provides a
liquid transfer method and a
liquid transfer device, belonging to the field of molecular diagnosis technology, a
liquid transfer component and a carrier platform are movably arranged on a base, a plurality of
liquid storage tanks and a sensing component are arranged on the carrier platform, and the method comprises: moving the sensing component to below the projection of the liquid transfer component, making the contact end of the liquid transfer component inductively contact with the sensing component, and recording the
contact position as the initial position; moving the
liquid storage tank to below the projection of the liquid transfer component, determining the first height according to the preset height and the preset liquid transfer amount and descending, and the liquid transfer component absorbs the liquid in the
liquid storage tank; controlling the liquid transfer component to rise, moving another
liquid storage tank to below the projection of the liquid transfer component, releasing the liquid absorbed in the liquid transfer component into the
liquid storage tank, and completing the quantitative transfer of liquid between the plurality of liquid storage tanks in sequence. By controlling the first height, the liquid transfer amount of the liquid transfer component can be accurately controlled. The liquid transfer component does not need to be specially made, and will not be disturbed by bubbles on the liquid surface, the liquid
transfer error is small, and the cost is low.