Objective To establish a data-base of infant growth criteria in rhesus monkey conoly.Method Body weight,body length,tail length,forelimb and hindlimb in infants were measured from 100 days to one year old.Results With statistical analysis and drawing growth chart of the animals,the growth of male and female animals was almost the same.After one year the growth rate of males was higher than that of female.Conclusion The results of this study provide a criteria in growth measurement of infant rhesus monkeys,and are useful in continually improving their nutrition and breeding technology.