In order to understand transgenerational effect of nonylphenol on growth, development and gonadal differentiation of Chinese forest frog, Rana chensinensis, adult females were exposed to nonylphenol (NP) at different concentrations (25 × 10-7, 125 × 10-7, 5 × 10-8 mol/L) for 60 days. The offspring tadpoles were divided into two groups, one group was feed in water without NP, another was treated with NP at stage 26 until completion of metamorphosis. The results indicated that offspring tadpoles in the group that was not treated with NP showed no significant change in the development time, body length, body weight and sex ratio as compared with control group. However, the offspring tadpoles in the group with NP treatment, showed significant decrease in developmental velocity, body length and body weight, and significant increase in percentage of females. It could be concluded that there was no transgenerational effect of nonylphenol（5×10-8～25×10-7 mol/L NP）on growth and development of Chinese forest frog， and that NP could directly affect the growth, development and gonadal differentiation of tadpoles.

nonylphenol； Rana chensinensis； growth and development； transgenerational effects