The utility model provides a full color light-emitting diode (LED) exposure lamp which comprises a circuit board, an integrated circuit (IC) chip which is arranged on the circuit board and multiple LED light sources which are connected with the IC chip. A polyvinyl chloride seal layer is covered on the circuit board and the multiple LED light sources. The IC chip is added on the circuit board and the multiple LED light sources are connected on the IC chip to form a red, green and blue (RBG) colorful light source. Multiple exposure lamps can be spliced together to form a colorful screen so as to improve watching effect of the full color LED exposure lamp. Meanwhile, the polyvinyl chloride seal layer and environment-friendly resin are arranged on the surface of the full color LED exposure lamp so that the full color LED exposure lamp has the advantages of being good in sealing performance and water-proof effect, environment-friendly, energy-saving and long in service life.