The present invention is a syringe for biochemical laser blood therapy, comprising a base having an optical fiber needle at one end and a connecting base at the other end, wherein the surface of the connecting base has a protruding structure, and the protruding structure a semi-circular edge provided with a cylinder along the connecting base, and a socket having a hollow structure at one end thereof, the socket includes an inner wall, the inner wall including a longitudinal guide groove and the longitudinal direction a lateral guiding groove connected to the guiding groove, the insertion seat is for inserting the connecting base, and the protruding structure sequentially enters the longitudinal guiding groove and the lateral guiding groove, and the insertion seat and the base are forced Tight and combined.本創作為一種用於生化雷射血液療法之針筒，包括一基座，其一端裝設有光纖針，其另一端具有一連接基部，其中該連接基部的表面具有一突起結構，該突起結構具有沿該連接基部之柱體而設置的一半圓形邊緣，以及一插接座，其一端具有一中空結構，該插接座包括一內壁，該內壁包括一縱向導槽以及與該縱向導槽相連接的一橫向導槽，該插接座用以供該連接基部插入，俾該突起結構依序進入該縱向導槽及該橫向導槽，而將該插接座與該基座迫緊而組合。
