The utility model relates to a blood return monitoring device for an injection pipeline, which is suitable for being installed in a drip infusion tube, and comprises a blood return sensing module and a blood return warning module connected to each other. The blood return sensing module can emit detection light toward the drip infusion tube, and sense the reflected light reflected or reflected from the drip infusion tube to output a detection signal. The blood return warning module can send a warning message when analyzing the detection signal to determine that there is blood in the infusion tube. The blood return sensing module senses the blood in the drip infusion tube, and the blood return warning module sends out the warning message when determining the blood returning phenomenon of the drip tube, and the infusion tube can be generated at the point. When returning to the blood, immediately alert to notify the surrounding caregiver or medical staff to go to the treatment.一種注射管路之回血監測裝置，適用於安裝在點滴輸液管，包含彼此連接之一回血感測模組及一回血警示模組。該回血感測模組能朝點滴輸液管發射偵測光，並感測穿透或反射自點滴輸液管之偵測光而輸出偵測訊號。該回血警示模組能會於分析該偵測訊號而判斷點滴輸液管中有血時發出警示訊息。透過將該回血感測模組會感測該點滴輸液管中的血液，而該回血警示模組會於判斷該點滴輸液管發生回血現象時發出該警示訊息的設計，能於該點滴輸液管發生回血現象時，立即警示以通知周圍照護者或醫護人員前往處理。
