To study the characteristics of finger length ratio of Han and She ethnic groups in southern Fujian. We randomly chose 506 (male: n=173; female: n=333) Han ethnic group and 450(male: n=231; female: n=219) She ethnic group in Southern Fujian. Using anthropometry, we measured and calculated the length ratios among finger 2, 3, 4 and 5, namely R2/3, R2/4, R2/5, R3/4, R3/5 and R4/5. The average finger length ratios in both Han ethnic group and She ethnic group in Southern Fujian possessed the tendency of R3/5>R4/5>R2/5>R3/4>R2/4>R2/3. The finger length ratios, R2/3, R2/4, R2/5, R3/4, R3/5 in left hand, and R2/3, R2/4, R2/5 in right hand in the males were higher than that in females of Han ethnic group(P<0.05); The ratios, R2/3, R2/4, R2/5, in left hand and R2/3, R2/4 in right hand in males were higher than that in females of She ethnic group(P<0.05); The ratios R2/3, R2/4, R2/5, R3/4, R4/5 in both hands in males, the values were higher in She ethnic group’s compared to Hanethnic group’s(P<0.05); The ratios R2/3, R2/4 in left hand and R2/3, R2/4, R2/5, R4/5 in right hand in females, the ratios were higher in She ethnic group’s compared to Han ethnic group’s(P<0.05). There were also obvious differences in the proportion of distribution of the average ratios between different genders in the same nationality. For the same gender, there was significant difference in the mean length ratios of right hand between different ethnic group. Finger length ratio of Han and She ethnic groups in Southern Fujian had sexual and bilateral differences.