Pen with LED for lighting and advertisement effect

The utility model discloses a displaying pen with the effect of advertisement, which is mainly composed of an upper penholder, a lower penholder and a combining part, and comprises a button, a luminous displaying mechanism which is arranged in the upper penholder, at least one battery, a spring, a circuit board and more than one LED, wherein, the button controls the circuit board and makes the LED to emit light, the lower penholder is sheathed with the upper penholder by the combining part, and the lower penholder is adhered by a clad material layer which is then removed partially or more. When the LED emits light, the penholders are irradiated by downward light, and the removed material partially displays the light and achieves an appointed advertising effect.