Abstract: It is reported in this paper the chromosome number of 6 species and 1 variety in Actinidia Lindl, showing that A.hubeiensis, A.zhejiangensis and A.fulvicoma are diploid, 2n＝2x＝58; A.grandiflora is a tetraploid, 2n＝4x＝116; A.deliciosa var.chlorocarpa is a tetraploid, 2n＝4x＝116.The above results are all reported for the first time,which has verified again that x＝29 should be the basic number of chromosomes in this genus,and the diploid type of A.latifolia and A.kolomikta is 2n＝2x＝58.