The invention discloses an LED water-flowing form steering lamp used on a tail part of an automobile. The LED water-flowing form steering lamp is characterized by comprising a 12V direct current power supply, a square wave oscillation circuit, an oscillation frequency regulating circuit, an A group of yellow light emitting diode driving circuits and a B group of yellow light emitting diode driving circuits, wherein the selected model of an operational amplifier IC1 in the square wave oscillation circuit is LM324. The LED is used as the water-flowing form steering indicator lamp used on the tail part of the automobile; the luminance of the lamp is higher than that of a common filament lamp, and the lamp has high response speed; according to the LED water-flowing form steering indicator lamp used on the tail part of the automobile disclosed by the invention, the A group of yellow light emitting diodes LEDs 1-10 and the B group of yellow light emitting diodes LEDs 11-20 are placed at intervals, and the two groups of the yellow light emitting diodes flicker alternately to generate a water-flowing form effect visually, so that the next following vehicle looks more striking; and compared with the conventional steering lamp used on the tail part of the automobile with a single flickering effect, the LED water-flowing form steering lamp has a better reminding effect.