The existing states of rare earth elements (REE) in tea and bioactivities of REE binding tea polysaccharide (REE-TPS) have been greatly drawn attention with the expansion of the applying of REE in tea garden. Results studied with ICP-MS, NMR and EXAFS, showed that REE-TPS existed in tea. The content of REE, especiallyof La, in REE-TPS were evidently increased by spraying REE. The coordination atom of the first coordination shell of La in REE-TPS was oxygen whose coordination number was 6 and the average dis...