Objective　To analyze the effects of achievement motivation and family environ-ment of undergraduates majoring in preventive medicine on creativity tendency. Methods　The self-administered questionnaire was used to survey the general characteristics

achievement motivation

family environment

and Williams creativity tendency of undergraduates (n=243) from grade 1 to grade 5 majoring in preventive medicine in a medical college. The effects of achievement motivation and family environment on creativity tendency were tested with multiple linear regression analysis. SPSS 17.0 software was used for statistical analysis. The indexes between boys and girls was compared with group t test

and single factor analysis of variance was made for comparison between grades

SNK method was used to test and compare two groups; linear correlation analysis was made to inspect the correlation between the two indicators

and multiple linear regression analysis method was used for further analysis. Results　The survey recycled 226 copies of effective questionnaires. The scores of achievement motivation

family environment

and Williams creativity tendency and all dimen-sions had no statistically significant difference among the five grades

or between the male and female (P >0.05). The positive influence factors of creativity tendency and its dimensions were pursuing success

the in-formative property

the entertaining property and organizational property

the negative influence factor was avoiding failure. R2 was 0.094-0.265 (P=0.000-0.048). Conclusion　Achievement motivation and family environment of undergraduates majoring in preventive medicine may have posi-tive effects on creativity tendency. Various comprehensive measures should be taken to improve family environment and enhance achievement motivation

and to promote to increase creativity tendency

and to cultivate students' creativity and improve students' scientific research ability.