A kind of syringe needle of what and the syringe including the syringe needle are closed in this creation. The syringe needle includes a pedestal and a needle body, the pedestal includes at least two blocks combined, and the end face that respectively block combines is equipped with a guide groove, this waits guide grooves to form a perforation for running through the pedestal, the needle body system is a hollow rod shape, and the part needle body system is waited in the blocks sandwiched what perforation by this. The syringe includes a syringe needle as described above, the syringe separately includes an adapter, an injection tube and a push rod, the pedestal system group connects the what adapter, a holding part is formed with inside the injection tube, the front end of the injection tube is connected with group with the adapter, the push rod is movably installed in the what holding part, which is equipped with a piston adjacent to one end of the adapter, which is equipped with a pushing and pressing part.本創作關於一種針頭及包括該針頭之注射器。該針頭包括一基座及一針體，該基座包括至少二相結合之塊體，各該塊體結合之端面設有一導槽，該等導槽形成一貫穿該基座之貫孔，該針體係為一中空桿狀，部分該針體係被該等塊體夾設於該貫孔內。該注射器包括一如上所述的針頭，該注射器另包括一轉接頭、一注射筒及一推桿，該基座係組接於該轉接頭，該注射筒內部形成有一容置部，該注射筒之前端與該轉接頭相組接，該推桿可移動地容設於該容置部內，該推桿鄰近該轉接頭之一端設有一活塞，該推桿另一端設有一推抵部。
