Abstract: Studies w ere carried out on the gonadal of pike conger , Mureanesox cinereus w ith regard to it s morphological and histolog ical features and annual maturatio n changes .The morphological observations show that , the ov ary and the testes of pike conger consist w ith many lamella ovaries and lamella testes respectively .The morphological structure of ovary and test is is largely different f rom those of most other f ishes .Histological observation on the g onadal show s that , some ovaries of individual pike conger develop into the maturation stage in the late April and individuals with matured ovaries increase sharply in May .So the reproductive period of pike conger is betw een May to August and the period betw een June to July is the most active . Microscopic and submicroscopic observation aslo show that , the sperm of pike conger has a sicklelike head and a relatively short tail .