The extended Hmong family is patrilineal, and polygyny is allowed. The family is the most important basic unit of social organization. Beyond the family level, the clan serves as the centre for all activities that mark the uniqueness and unity of the Hmong people. The available information indicates that there are eleven clans in Thailand. The names and origins of these clans are recited in Hmong legends.
Hmong religion is a combination of pantheism and shamanism with the emphasis on ancestor-worship.
The Chinese influence is obvious in their beliefs and practices. They are pioneer of primary-shifting cultivators. Rice and corn are the main subsistence crops, and opium is the principal cash crop. The Hmong are more heavily engaged in opium production than any other highlanders in Thailand. The New year celebration which normally takes place in December is the most important festivity.