The concept of lifelong learning is deeply entrenched in Thai culture and tradition. Gradually moving from a primarily agricultural society toward a manufacturing, industrial and service, and society with the goal of becoming a learning society, Thailand needs to offer its people with more lifelong learning opportunities and support to continuously upgrade their lives. This article presents keys aspects regarding lifelong learning, and reviews several Thai nation policies and initiatives for the development of lifelong learning activities toward building a learning society in the Thai context. Case studies presented reflect efforts have been made to help raise local citizens' awareness to the transformation of communities, cities, and regions into a learning society in Thailand. This article may help provide some developmental guidelines for countries that are in the similar processes of cultivating lifelong learning environment and culture for a sustainable development of a society.