Abstract: The phenological phase observation shows that the turning-green stage, the initial stage of booting stage, the blooming stage, the maturation stage, the wilting stage and the blue-green period are different among different accessions of centipedegrass germplasm resources in East China, their variation scopes are from April eighteenth to May eighth for the turning-green stage, from May twenty-ninth to September twenty-ninth for the initial boot stage, from August twenty-eighth to October twenty-fourth for the blooming stage, from October ninth to November twentieth for the maturation stage, from November seventh to December first for the wilting stage, from 189 days to 217 days for the blue-green period, respectively. Regression analysis indicates that the turning-green period and initial stage of booting stage become earlier with the latitude increasing. Correlation analysis indicates there exists obvious or notable correlation among some of six stages at significant levels. The turning-green stage is positively correlated with the initial stage of booting stage, the blooming stage, the wilting stage at very significant levels, and their coefficients of correlation are 0.3557, 0.3429, 0.3995, respectively. The blooming stage is positively correlated with the wilting stage at significant level, and its coefficient of correlation is 0.3526. The initial stage of booting stage is positively correlated with the blooming stage, the maturation stage at very significant levels, and their coefficients of correlation are 0.7834, 0.4626, respectively. The blooming stage is positively correlated with the maturation stage at very significant level, and their coefficient of correlation is 0.6592. The turning-green stage is negatively correlated with the blue-green period at very significant level, and their coefficient of correlation is 0.8019.