The invention relates to a syringe suction auxiliary fixture, which comprises a frame with a chute, a holding groove opened outwards on one side of the chute, a card groove on the opposite sides of the holding groove for installing the needle barrel protrusion of the syringe, and an inner frame with a holding groove and a holding groove on one side of the holding groove for installing the piston core rod protrusion of the syringe, and the The inner frame is slidably arranged in the sliding groove of the frame and is close to and far away from the holding groove, so that the piston core rod of the syringe slides and displaces in the sliding groove.本創作是一種注射器抽吸輔助夾具,其包括:一框架,其具有一滑槽,並於該滑槽一側向外開通的一容置槽,該容置槽相對兩側設有一卡溝用以安裝注射器之針筒突部;及一內框,其具有一容槽,及位於該容槽一側的一容納槽用以安裝注射器之活塞芯桿突部,而該內框滑設於框架的滑槽內且朝向容置槽靠近及遠離,令該注射器之活塞芯桿於滑槽內滑動位移。