Fine roots release labile substrates such as sugars, amino acids and organic acids to surrounding soils, therefore stimulate the decomposition of soil organic matter. However, how to predict root exudation among species is less known. We previously found that root exudation correlated with other root traits. In this study, we sampled 17 co-existing woody species from 12 families in a deciduous-evergreen community in the Shennongjia forest, Hubei Province, and hypothesized that root exudation also correlates with other root traits among species. Among these species, root exudation positively correlated with root respiration and root N contents, and negatively with root C/N ratio, tissue density, and branching intensity. Using a principal component analysis(PCA), we found that the root chemical and physiological traits distributed along PCA1 and root morphological traits distributed along PCA2. Our results suggested that root exudation is a major dimension of root trait syndrome. It is promising to predict root exudation fluxes and its effects on SOM decomposition from the root-trait syndrome in the future.