Abstract: The paper aims to study the climate adaptability and climatic zoning of quinoa planting in Qaidam Basin. Using monthly average temperature data in 11 stations from 1981 to 2015, the authors calculated average value of year, season and month, and the climate tendency rate by adopting the climatic statistical diagnosis analysis method, and studied the correlation coefficient, mutation characteristics and change cycle. The results showed that over the past 35 years, air temperature in the basin had experienced 2 periods, a relatively cold period from 1981 to 1997, and a relatively warm period from 1998 to 2015; the warming trend of annual average temperature, maximum temperature, minimum temperature was 0.50℃/10 a, 0.49℃/10 a and 0.62℃/10 a, respectively; the highest temperature in spring increased significantly, the lowest temperature in other seasons increased significantly, seasonal average temperature increased significantly; warming in December and January was not remarkable; from the spatial distribution, Tianjun was the center of low temperature, Nuomuhong and Golmud were the center of high temperature, the west of Lenghu and the east of Dulan were the low value center of temperature increase, while the middle was high value center. Through the cumulative anomaly and Mann-Kendall tests, the authors further determined that the climate change year of average temperature, maximum temperature and minimum temperature was 1996, 1993 and 1998, respectively; Using the Morlet wavelet transform to analyze the temperature change cycle in the basin, the result showed that the average temperature and the highest temperature had a good corresponding relationship in different periods.