Abstract: The paper aims to guide the planting of jujube trees in Zanhuang. Based on the meteorological data of the daily average temperature in Zanhuang from 1971 to 2017 and the hourly temperature data from 2004 to 2017, by using the trend analysis, Morlet wavelet, and Pearson coefficient and so on, we analyzed the variation rules of boundary temperature with chilling requirement of 7.2℃for jujube trees in Zanhuang. The results showed that: the initial day, the ending day and the duration days of the temperature rising steadily to 7.2℃ did not change significantly in Zanhuang; the average date for the initial day and the ending day was March 20, November 10, respectively; the average consecutive days was 131 days; there were some periodical changes in the initial day, the ending day and the duration days when the temperature decreased steadily to 7.2℃; and the initial day, the ending day and the duration days had a quasi-12-year, a quasi-14-year, a quasi-12-year change cycle, respectively; the average hours of chilling requirement with the temperature at 0-7.2℃ was 1181 h; the multi-year average date for the chilling requirement to 612℃ was January 19.