The present invention discloses a steering wheel indicating paddle for displaying a power rotating speed of an automobile. The paddle comprises an emitting panel connected with an OBD port of the automobile, a receiving panel mounted on an R paddle or an L paddle of the automobile, a first lamp panel mounted on another paddle and a second lamp panel integrated to the receiving panel. The emitting panel comprises an OBD signal access circuit, a first master control chip, a first power supply circuit and a wireless sending module. The receiving panel comprises a second master control chip, a second power supply circuit and a wireless sending module. According to the present invention, the OBD signal access circuit is connected with the OBD port of the automobile, so that it acquires a rotating speed condition of an engine.