The socio-economic structure of the Lao Wian ethnic group has changed from subsistence to commercialization. The ethnic group are rice farmers and their family structure has changed from extended family to more nuclear families due to population growth and economic changes. The villagers are both Buddhists and animists and their kinship system is of two types: bloodline and matrimony. The Lao Wiang phonological system is composed of 20 initial consonants, nine final consonants and two initial clusters. There are 21 vowels and five tones. The syllabic structures included mono-syllabic, disyllabic and poly-syllabic. External factors affecting the community changes are communications systems, electricity, the introduction of modern production methods by state agencies, and new technologies. Internal factors are population growth and less fertile soil.