Abstract: Based on biological data obtained from the specimens of Cynoglossus robustus from the East China Sea in 1994, the distribution, variant regularity and relationship with body character indexes of individual fecundity were studied. The results were summarized as follows: 1) The individual absolute fecundity r and relative fecundity r / L , r / W are all distributed normally. 2) Both the individual absolute fecundity r and relative fecundity r / L are linearly and directly correlat ive to the character indexes by weight . The relationships between the individual fecundity r , r / L and the length..s character indexes can be expressed in power functions, while the individual relative fecundity r / W has no significant relationship with these body character indexes except gonad weight and maturat ion coeff icient. 3) Younger than 4 years old , both r and r / L increase with age, but r / W shows no significant difference in various age groups. 4) Interrelations of two sets of variates, ( r , r/ L , r / W) and ( body length, body height, maturation coeff icient) , are developed by canonical correlations. They show that r is mainly dependent on the size of f ish and r / L depends on the body shape of fish.