A surgical clip applier has an outer tube and a rail in the outer tube. The rail has a stopper formed on a distal end. The rail has multiple clips placed therein. A distal end of the rail has a jaw structure. The rail has a spring bracket and a guiding rod. The rail has a pusher being pushed by the guiding rod. A spring is mounted outside the rod to push the pusher and clips. A reciprocating pushing assembly is placed inside the tube. When the pusher is moved back and forth, a first clip is moved into the jaw structure and other clips are moved toward for one step. In this present invention, the spring is guided by the rod to prevent deformation.一種血管施夾裝置，是在外管內設有軌道，在該軌道的前端設有彈性卡抵形狀，在該軌道內連續設有多個夾釘，在該軌道的前方設有穿出該外管的夾嘴，在該軌道設有一彈簧座，在該彈簧座結合一與該軌道平行的導桿，在該軌道滑動設有受該導桿導引的推釘器，在該導桿套設一彈簧，以彈簧推動推釘器與多個夾釘，在該外管內設有推動最前方夾釘的上釘推桿與驅動夾嘴夾合的覆進推桿組件；當該上釘推桿進退動作時，能將夾釘送進夾嘴內夾合，由於本發明推動推釘器的彈簧受導桿的導引不會變形阻礙動作，因此本發明具有送釘動作流暢與操作滑順的功效。
