Abstract:The mega- and microsporogenesis and the development of male and female gametophytes in Lonicera mnackii （Rupr.） Maxim were observed. Young anther walls were composed of four layers including epidermis, fibrous layer, middle layer and amoeboid tapetum in early and middle April. Tetrahedral tetrads of microspores were present on about April 15. After the stage of tetrad, some microspores aborted and cytoplasms were absent. Three-celled mature pollen grains developed from April 23 to April 26 shortly before flowering. The ovary was trilocular with axile placentation and the ovules were anatropous, unitegrninous, and tenuinucellate. The mature embryo sacs occurred before flowering in late April, which were of the Polygonum type. Hypostase was at the chalazal end of the ovule. These results suggest that mega- and microspores and male and female gametophytes of L. maackii have normal development.