Since 1992, the authors have been comprehensively researching the life of local people in an unelectrified village of northern Thailand. A research on structure and function of the family was conducted by a questionnaire survey in August 2002 with a hearing survey that followed up one year later in August 2003 as well as the demographic surveys conducted in January 1993 and June 2002. The data were mainly analyzed by cross analysis method using SPSS software. With the electrification of the village at the end of 1996, the villagers exposed to a large quantities of external information through TV have been trying to increase their earnings in various ways on the basis of the information obtained. Consequently, those who work or study away from homes are increasing. Although the family structure has not remarkably been changing, the outsourcing of the family function has been recognized. Furthermore, internationalization has been slowly progressing there. Such being the case, the structure and function of the family of this village are expected to change at an accelerated rate.