:茶树叶面喷施稀土是一项增产提质的栽培措施。但人们关心外源稀土对茶叶中稀土元素(REE)含量、组成及存在状态所产生的影响。试验表明,喷施至采摘间隔期愈长,喷施稀土对茶叶中稀土含量及组成等的影响愈小。茶叶中REE约有80%左右以水不溶态残存于茶渣中,不进入茶汤。进入茶汤中的REE约有10%是以稀土多糖状态存在,其中尤以La、Ce、Nd为主。间隔期愈短,稀土进入茶汤的量及参与稀土多糖配合物的量愈高。 : Tea leaf spraying rare earth is a cultivation measures to increase yield. However, people are concerned about the effect of exogenous rare earth on the content, composition and existing state of rare earth elements (REE) in tea. The results showed that the longer spraying interval between picking and picking, the less effect of spraying rare earth on the content and composition of rare earth in tea. About 80% of the REE in tea remains in the tea residue in a water-insoluble state and does not enter the tea soup. About 10% of the REE entering the tea soup is in the state of rare earth polysaccharides, especially La, Ce and Nd. The shorter the interval, the amount of rare earth into the tea and participate in the higher amount of rare earth polysaccharide complexes.