Yunnan's long development history， unique natural environment， and multi-ethnic coexistence have made it distinctive in the scientific and technological progress. This is primarily reflected in its alignment with the emergence of the Yuanmou Man， a very long history of technological invention and application. The ethnic diversity permeates Yunnan's scientific and technological development， vividly showcasing the charm of the pluralistic unity of the Chinese culture. The intricate natural environment of towering mountains and vast rivers has endowed Yunnan's scientific and technological development with distinct regional features. As a crucial area connecting China to Southeast Asia and South Asia and the frontier geographical position， Yunnan's scientific and technological development has the features of internal and external openness and inclusiveness. Meanwhile， under the constraints of various political， economic， and cultural factors， its scientific and technological progress， belonging to the Chinese civilization， exhibits uneven development.