Abstract: Characterized by high elevation and strong radiation, the Tibetan Plateau (TP) transports huge amounts of heat and water vapor from the surface to the atmosphere, regulating the development of atmosphere boundary layer and cloud precipitation processes. The sensible heat pump effect has a significant impact on the weather, climate and atmospheric circulation over TP and its surrounding regions. The current conditions of the harsh environment and the lack of comprehensive observation stations seriously hinder people's understanding of land-atmosphere interaction process and its regional weather and climate effects over the TP. Since the 1980s, numerous large-scale field observation experiments have been conducted to study the processes of land-atmosphere interaction, atmospheric boundary layer, cloud & precipitation, and TP’s weather and climate effects, and fruitful research results have been achieved. In particular, the National Science and Technology Special Project “the Second Tibetan Plateau Scientific Expedition and Research” was launched in 2017, and a large number of comprehensive integrated observation experiments have been carried out on the basis of previous observational projects. This article will systematically review and summarize relevant observational research progress on the land-atmosphere interaction process, atmospheric boundary layer process, cloud precipitation process, and TP’s weather and climate effects from the perspective of in situ measurements over the past five years.