The present invention relates to a blood vessel position detecting device, which mainly comprises a left and right displacement mechanism, an up and down displacement mechanism, a robot arm, a sensor and a micro control unit, wherein the left and right displacement mechanisms are arranged above Up and down the displacement mechanism, and mounting the mechanical arm on the upper and lower displacement mechanism； when blood is to be drawn, a blood vessel detecting sensor is placed at the front end of the robot arm, and corresponding to the limb, the sensor Transmitting the micro control unit by the micro control unit, and reading the data from the micro control unit and analyzing the position of the blood vessel on the limb to control the movement of the mechanical arm on the limb, stopping the movement after finding the position of the blood vessel, and alerting the medical staff to draw blood The position of the limbs is sufficient to assist the medical staff in accurately finding the function and advantages of the blood draw position on the limb.本創作係有關於一種抽血的血管位置偵測裝置，其主要包含有左右位移機構、上下位移機構、機械手臂、感測器及微控制單元，其中於所述左右位移機構上方組設所述上下位移機構，並在所述上下位移機構上安裝所述機械手臂；當要抽血時，在所述機械手臂前端放置血管偵測的感測器，並使其對應肢體，所述感測器電信連結所述微控制單元，由所述微控制單元讀取資料並分析肢體上血管位置，以能控制機械手臂於肢體上移動，於找到血管位置後停止移動，並警示告知醫護人員可抽血的肢體位置，達到輔助醫護人員能精確找尋到肢體上可抽血位置的功效與優點者。
