Abstract: The study explored the gender code tendency of the pupils on neutral things by dubbing the neutral objects and evaluating the gender tendency of the adjectives. The results showed that：（1）the pupils had stable gender code tendency on the neutral things. This tendency emerged in 1-grade pupils already，and life experiences and traditional culture reinforced it；（2）the trends of the gender tendency of the pupils on neutral things were identical，but there were some differences among grades. Along with the grade increased，the ratio of classifying things which possessed female features as female increased，the ratio of classifying things which possessed male features as male increased also.（3）there were sexual differences in gender coding on neutral things. Boy students and girl students showed the self-gender-centered tendency .Boy students noticed more male characteristics of neutral things than girl students，girl students noticed more female characteristics of neutral things than boy students. Compare with the boy students，the gender code tendency of girl students were stronger.

Key words: pupils, neutral things, gender coding