A disposable bone marrow puncture biopsy needle is a special medical device designed for bone marrow puncture biopsy surgery. This medical device is safe and efficient, suitable for the diagnosis, differential diagnosis, and treatment effectiveness assessment of blood diseases. A disposable bone marrow puncture biopsy needle consists of a needle rod handle assembly, a needle tube handle assembly, a locator assembly (if any), a sampler (if any), a disconnector assembly (if any), a locking device (if any), a positioning ring (if any), a safety helmet (if any), an anti fouling cover (if any), and a protective sheath. According to the suction or cutting function of the product, it is divided into 7 models, and different specifications are divided based on the outer diameter and nominal length of the needle. This product is provided in a sterile state.