New Tai Lue script, also known as Xishuangbanna Dai and Simplified Tai Lue, is an abugida used to write the Tai Lü language spoken in Burma, Laos, Thailand, China and Vietnam. It was developed in China in the 1950s, and it was based on  The traditional Tai Tham alphabet 1950–1974 developed in XII century.

The government of China promoted the alphabet for use as a replacement for the older script, but teaching it was not mandatory. That's why some people have no idea about New Tai Lue. In addition, communities in Burma, Laos, Thailand and Vietnam still continue to use the Tai Tham alphabet nowadays.