There are abundant geothermal resources in Jinghong basin. Based on the geological conditions of geothermal well for geothermal resources exploration, construction conditions and the achievements, combined with the practice and experiences obtained in geothermal resources exploration, this paper summarizes and analyzes the geological issues related to geothermal resources exploration, geothermal well drilling, completion technology and well drilling; and discusses the relation between geological conditions and geothermal well construction. Some questions for the specifications in the current standard for geothermal well are raised, such as well body structure design, water level determination and calculation of single well resource, which is meant to find out valuable experience and lessons for geothermal resources exploration by practice and discussion.