Abstract: To provide references for Cr contaminated soil remediation, the authors studied the effect of different Cr6 + concentrations on FTIR spectrogram and determined the subcellular distribution of Cr6 + and its accumulation. The results showed that the accumulation capacity of Cr6 + in plant was positively correlated to Cr6+ concentration. Cr6+ accumulated in leaves was mainly distributed in cell wall (37.14%-63.52%), and was least distributed in the mitochondria and chloroplasts (＜12%). Cr6+ in root first increased then decreased near 1064, 1404, 1635, 2924 and 3417 cm- 1, which might be caused by the increase of organic contents (e.g. carbohydrates and amino acids) responding to the Cr6+ stress. Cr6+ in stems had no obvious change near 1072, 1427, 1643, 2924, 3387 cm- 1． Cr6 + in leaves near 1110, 1396, 1651, 2924, 3433cm- 1 first decreased then increased, indicating that small organic substances containing O- H (carbohydrate) in cotyledons were transported to the roots firstly and then reacted with Cr6+ chelates to reduce the toxicity of Cr6+. These results demonstrate thatG. max L. is suitable for phytoremediation of Cr6+ contaminated soils and has potential value in improvement of soil quality from the aspect of food safety．