Abstract: The detached flower buds of wild Dianthus chinensis L.was used as test materials and was treated with different pH acid-base buffers and trace elements.The effects of pH and trace elements on the flower color and the anthocyanin content were studied, in order to provide a reference for the greening of Dianthus chinensis L.in the future.The results showed that the petals turned red under pH 4 and pH 5,and thurned light under 9 and 10.There was no change from 6 to 8.The anthocyanin contents under pH 4 and pH 10 were significantly lower than those under pH 7.Compared with the untreatment, the flower buds in vitro bloomed, the flower colors became light and the anthocyanin contents decreased as CuSO₄ concentrations below 1.88×10^-2 mol·L^-1.The ZnSO₄ increased the anthocyanin contents of petals.With the increase of（NH₄）₂Mo₂O₇ concentrations, the petal turned blue gradually and the anthocyanin contents increased.Therefore, the ornamental characters of Dianthus chinensis L.would not be influenced under the pH ranging from 6 to 8,and influenced by the trace elements in the environment.