In order to explore phenotypic and genetic variability among Botrytis cinerea population isolated from ginseng,154 B. cinerea strains that were pathogenic to ginseng,were isolated from eight regions in the main producing areas of ginseng in China. Phenotype was observed on potato dextrose agar for 3 weeks,transposable elements (TEs) and MAT locus were identified by PCR amplification,and pathogenicity of strains with different TEs was determined. Eight phenotypes,3 TEs types of Boty,Flipper and Transposa,and no Vacuma type were identified,of which Transposa was the highest proportion (93.51%) and the most pathogenic. Meanwhile,73 and 75 isolates were MAT1-1 and MAT1-2 types,respectively,which were found to be balanced overall in the population. The results obtained in the present study suggest a relatively uniform species diversity,rich phenotypic and genetic differentiation within the B. cinerea population from ginseng in China.