Luminescent sign have a good effect on indication both in daytime and night. Luminescent Sign is an excellent combination of traditional signs and hi-tech luminescent materials, and it improves the disadvantage of traditional one which works in daytime or under the illumination condition only. It has a performance of storing lights, and emitting lights automatically as well, even in nights it works perfectly as a safety sign by striking people's eyes. As a substitute for traditional products, it possesses many advantages as energy-saving, safety, stabililty and wide adaptabilty, etc, and in addition, it affords us a beautiful landscape through protecting environment and changing people's social and cultural life. The product is very practical and has a promising market and its popularization and utilization are to produce enormous social and economic benefit.