By using the temperature observation data of 124 stations in Yunnan Province during 1961-2008, the 1 km×1 km fine-grid temperature data was obtained after the terrain correction.The study on the climate division based on the fine mesh data and the selection of representative climate stations in Yunnan Province was carried out.The results show that there are six climate zones in Yunnan Province, namely, plateau climate zone, temperate zone, north subtropical zone, middle subtropical zone, south subtropical zone and north tropic zone.Each of them occupies an area of 3.32, 3.65, 15.65, 6.82, 8.66 and 1.31 ten-thousand square kilometers respectively.The plateau climate zone is located in the high altitude area over 3000 m in northwest of Yunnan Province.The temperate zone is mainly located in the area with altitude of 2200~3000 m in the northeast and northwest of Yunnan Province.The north subtropical zone is mainly located in the high altitude area in the middle, west and south and the low altitude area in the north of Yunnan Province.The middle subtropical zone mainly lies in the relatively high altitude area in the middle, southeast and southwest of Yunnan Province.The south subtropical zone mainly lies in the south area of Yunnan Province and the stream valley area.The north tropic zone is mainly located in the south area of Yunnan Province and the lower altitude stream valley area.Distribution of each climate zone is related with the terrain and the latitude.Compared with administrative region, the terrain feature better embodies climate characteristics of different climate zones.Through statistical analysis on consistency and deviation of the sequence of the stations and the climatic zone, representative climate stations are selected.They can better reflect the characteristics of each climate zone of Yunnan Province.