Abstract: The aim of this study is to explicit the occurrence regularity of bean sclerotinia rot in greenhouse in order to provide the basis for scientific prevention and treatment. The bean sclerotinia rot and the correlation with meteorological factors was studied in different seasons through the field investigation and experiment analysis with correlation analysis; The Results showed that flowers with a higher carrier rate in autumn than in spring.The Incidence is higher of been stem and pod in autumn than in spring. The peak age incidence was October. There was a positive correlation between rainy days with the incidence. The equation may be written such that Y＝-7.5425+1.7153X，the correlation coefficient is 0.8516;The Sclerotioum sclerotiorum (Lib) de Bary.can safe pass winter under soil; Low temperature and rainness in autumn was beneficial to the occurrence and epidemic dynamics of bean sclerotinia rot,There was a positive correlation between rainy days with the incidence.