Fat transplantation device

The invention discloses a fat transplantation device, and aims to solve the problems that fat activity is affected and fat is polluted as the fat is separately extracted and implanted in the prior art. The fat transplantation device comprises a closed device body consisting of a top cover, a side wall and a bottom plate, the closed device body is divided into a fat storage portion and a pressure adjusting portion by a filter screen for filtering impurity liquid, the filter screen is fixedly connected with the side wall, the fat storage portion is positioned above the pressure adjusting portion, side walls of the fat storage portion and the pressure adjusting portion are provided with telescopic corrugated sections, a fat extraction pipe and a fat injection pipe are arranged on the top cover, switch valves are arranged on the fat extraction pipe and the fat injection pipe, and the bottom plate is in close fit with the side wall and vertically moves along the side wall under the action of external force.