The creation is a drip critical level warning device comprising a drip storage container, a blocking component, an infrared detecting component and a warning component. The drip storage container can be provided with a drip solution. The blocking member can be disposed in the drip storage container and can float on the drip solution. The infrared detecting component can be disposed adjacent to the drip storage container and can include a transmitting component and a receiving component. The launching component emits infrared light at a critical location of the drip storage container. The receiving member can receive infrared rays, and when the drip solution drops to a critical position, the blocking member can block infrared rays, so that an alert signal can be generated when the receiving member cannot receive infrared rays. The alert component can receive the alert signal and generate a warning message.本創作是一種點滴臨界水平警示裝置，其包含點滴儲存容器、阻擋部件、紅外線偵測組件以及警示組件。點滴儲存容器可裝設點滴溶液。阻擋部件可設置於點滴儲存容器中，且可漂浮於點滴溶液上。紅外線偵測組件可鄰近設置於點滴儲存容器，且可包含發射部件及接收部件。發射部件可對點滴儲存容器之臨界位置發出紅外線。接收部件可接收紅外線，且當點滴溶液下降至臨界位置時，阻擋部件可遮擋紅外線，因此當接收部件無法接收紅外線時可產生警示訊號。警示組件可接收警示訊號，並產生警示訊息。
