Abstract: In order to explore the best time for starting cultivation of Stropharia rugosoannulata in Hebei Province, temperature index for starting cultivation time was obtained by analyzing temperature data both inside and outside plastic greenhouses for three consecutive years, and isogram of suitable starting cultivation date was drawn by using temperature data of Hebei Province in the last 30 years．Trend and periodicity of starting cultivation date were analyzed by temperature tendency rate and Morlet wavelet analysis．Results showed that temperature index for starting cultivation date in plastic greenhouses of Stropharia rugosoannulata in Hebei Province was the maximum temperature outside plastic greenhouse was lower than 27 °C．From 1991 to 2020, day sequences of starting cultivation date of Stropharia rugosoannulata in plastic greenhouses in Hebei Province ranged from 257 to 274, average date was 265．There was a significant delay trend year by year（P<0.01）, with a tendency rate of 1.01 d/10a．Starting cultivation date of plastic greenhouses Stropharia rugosoannulata in Hebei Province generally was gradually delayed from the north to the south and from the west to the east．The southern part of Handan City started the latest, with a day sequence of 277 on October 3rd, while Zhangbei County in Zhangjiakou City started the earliest, with a day sequence of 222 on August 10th．There were significant periodic variations in starting cultivation date, which showed a gentle-drastic-gentle pattern．The strongest periodic oscillation occurs around 10 years, with the first main cycle and the second main cycle lasting 4 years．Conducting research on cultivated time of Stropharia rugosoannulata could provide scientific basis for precise cultivation．