This invention relates to an injection needle having orientation indication function, comprising a needle body having an oblique face formed on the needle tip of the first end and a needle seat combined to the second end of the needle body. The needle seat is disposed with a marker axially corresponding to the oblique face of the needle body. The surface of the marker can be set to have reflection property or the marker can contain fluorescent substance. When the medical staff performs injection or extracting body fluid, the disclosed injection needle enables to conveniently and accurately determine the required injection orientation or whether the oblique face of the needle tip faces upward, so as to avoid the danger of injection in a wrong orientation or getting stung by the needle.一種具有標定方位作用的注射針頭,包括有在第一端之針尖形成一斜切面的針體,以及一結合在該針體第二端的針座,所述針座設有軸向對應該針體之斜切面的標識物,該標識物的表面可設為具備反光性質,或使標識物含螢光物質;醫護人員對病患進行注射或抽取體液時,得以更方便且精確地判斷針尖斜切面是否朝向上方或所須方向,避免打歪針或扎針的危險。1...針頭11...針體111...針尖斜切面112...針孔12...針座2...標識物3...注射筒
