Objective To establish a normogram of penile growth,we measured the penis size in normal Chinese males, from newborn to adult. Methods The penile length, diameter of penis coronal and testicular volume were measured. Subjects from 0 to 18 years are divided into a groups. Results A total of 2187 normal male subjects were divided into 21 groups. The growth rate of penis length of subjects less than 1 year is relatively fast (P<0. 01). It slowed down between 1～10 year old of age. The rates did not show significant difference (P>0. 05). Between 11 ～ 15 years of age, there was rapid growth. There was significant intra-observer variation (P<0. 01 ). Over 16 years of age, penile size increased with age, but significant difference was not noticed. Testicular growth takes place one year earlier than the penis growth. Conclusions The study involved a large population. The direct measurements are simple and reliable. These data provided the normal pattern of Chinese male penile growth.The results provide a reference penile growth normogram for clinical reference.