All of the chondrite-normalized REE patterns of kimberlites from Shandong and Liaoning, incline to the right, the (La/Yb)N,ratios changed from 22.7 to 357.9 and the LREE/HREE ratios from 12.4 to 61.3, belonging to LREE-rich type (Fig.l and 2). This characteristic may be related with the LREE´s strong alkalinity and easily getting into the alkaline kimbPrlite. Moreover, the above kimberlites shave the following REE geochemical chara- cteristies: the (La/Sm)N ratios changed from 3.8 to 11.5, the (Gd/Yb)N ratios from 4.1 to 18.6. The δEu values changed from 0.75 to 1.22, but most of them are between 0.80 to 0.99. The ∑REE ranges of diamond-rich kimberlites are smaller: between 300 and 600 ppm, for instance, ranging from 361.6 to 544.7 ppm in Shengli I`No.l pipe,Shandong province; from 378.9 to 511.9 ppm in No.50, 51，42 and 30 pipes, Liaoning province. The FREE ranges of diamond-poor or -free kimberlites are larger, and the ∑REE contents are either less than 300 ppm or more than 600 ppm (Table 2).Therefore ∑REE of kimberlite is an important parameter in diamond exploration. The ∑REE contents of xenoliths in kimberlites are: himberlite xenolith 237. 6 ppm, eclogue 55.2 to 73. 3 ppm, dunite 10.6 ppm, they are all much lower than those of diamond-rich kimberlites (Table 1). The REE patterns for kimberlites are apparently different from those of eclogue and dunite xenoliths (Fig. 4).