The official language of Laos is Lao. Lao, also known as Lao, is the official language of Laos. Old sayings are distributed in Indochina Peninsula, which are close to Thai, but there are some differences in the appearance of words. Laoyu is a branch of Zhuang-Dong language family, which has absorbed a large number of Sanskrit, Pali and Cambodian loanwords in history.

Laos is a landlocked country, located in the north of Indochina Peninsula, bordering China in the north, Cambodia in the south, Vietnam in the east, Myanmar in the northwest and Thailand in the southwest, with a total area of 236,800 square kilometers. Lao language is not only distributed in Laos, but also in the areas where Laos live in the northeast and north of Thailand. Besides, Thais in Thailand, Viet Nam and Cambodia, Shan people in Myanmar, Dai and Zhuang people in China can also speak fluent Lao.

There are two different forms of Lao phonetic characters: one is the older one, called "Duotan" (meaning scripture), which is similar to the ancient Dai language in form and spelling; The other is called "Lao Lao" (meaning "Lao Wen"), which is similar to contemporary Thai in form and spelling.

There are two different forms of Lao phonetic characters: the older one is called "Duotan" (meaning "scripture"), which is similar in shape and spelling to the ancient Dai language and is only found in the Baye Sutra of temples or used in Buddhist colleges; The other is called "Lao Lao" (meaning "Lao Wen"), which is similar in shape and spelling to contemporary Thai. Both of them are reformed from Mongolian-Khmer alphabet and are the official common characters in Laos today.