Objective To find out the infection situation of hepatitis B virus among freshmen in a vocational college

so as to provide scientific basis for prevention and treatment of hepatitis B in the college.Method HBsAg of 2 450 freshmen were tested

and with the HBsAg-positve

5 items of hepatitis were detected

Then the test results were andysed.Results HBsAg positive rate was 6.53%

The positive rates of males and females were 8.18% and 5.01% respectively

with statistically significant difference（P<0.01）.The positive rates of students from urban and rural were 4.20% and 8.20% respectirely

and the difference was statistically significant（P<0.01）.In the model of HBV infection

the HBsAg（+）/HBeAb（+）/HBcAb（+）accounted for 43.12%、the HBsAg（+）/HBeAg（+）/HBcAb（+）41.88%.Conclusion The situation of HBV infection is not optimistic among freshmen

and HBsAg positive rate in boys is higher than girls

rural students is higher than urban students.Prevention and treatment of hepatitis B should be conducted.