Pipetting color-changing suction head

The utility model relates to the technical field of laboratory supplies, in particular to a pipetting color-changing suction head which comprises a suction head body and a liquid inlet end, an observation groove is arranged at the position, close to the liquid inlet end, of the suction head body, the observation groove and the interior of the suction head body are separated through a permeable membrane, and a freeze-drying indicator is filled in the observation groove. The suction head further comprises a sealing assembly acting on the suction head body. A reagent sucked into the suction head body can permeate into the observation groove through the permeable membrane, and the color of a freeze-drying indicator is changed, so that people observe the freeze-drying indicator in the suction head body through the permeable membrane, whether the reagent is sucked into the suction head body or not can be intuitively known, and misoperation caused by empty suction is prevented. 本实用新型涉及实验用品技术领域，具体为一种移液变色吸头，包括吸头本体和进液端