Abstract: long life people who were all over 90 years old in Beijing, Niu Street area were investigated.Some physical examinaltions and investigations of the status in diet and the habit of diet and life have been done.The results show that the incidence of long life people in Huinationality is 2.25 times than that of Han(P<0.01).The incidence of long life in women is 2.33 times than that of man (P<0.01).Body Mass Index (BMI) of men and women were 20.80 and 19.54 respectively.Most of them were short and slight in figure,none was fat.Their intakes of energy、protein and fat as well as carbohydrate were all in the low side.The habit on diet were reasonable and light.Most of them were neither drinking nor smoking while intaking more tea and less salt.

Key words: factors of long life, Hannationality, Hui-nationality