The present invention relates to the physical instrument technology especially an energy liquid measuring instrument. The main structure consists of observing window, small pipe, large pipe, and drive mechanism. The small pipe matched with the observing window is connected at two ends to the large pipe to form a ring pipes; the large pipe matched with the drive mechanism; the observing window has a dial and its support, pointer, stop plate, etc. matching mutually; and the drive mechanism has motor, blades, impeller cap, etc. matching mutually. The blades push energy liquid to flow, and the energy liquid pushes the stop plate to swing the pointer. The present invention is used to measure energy liquid and shows its existence. |