Abstract：Objective：To investigate dietary habits of people with qi-deficiency constitution，and analyze the relationship between qi- deficiency constitution and dietary habits. Methods： Dietary habits and types of constitutions in Chinese medicine from 1 121 subjects who received examination were investigated. Dietary factors probably effecting qi- deficiency constitution were analyzed and selected via unconditional Logistic regression. Results：Among 1 121 subjects who received examination， there were 236 cases of qi- deficiency constitution， accounting for 21.10% ， and 885 cases of non- qideficiency constitution，accounting for 78.90%. Among people with qi-deficiency constitution，there were 88 cases of male subjects， accounting for 37.29% ， and 148 females， accounting for 62.71% . Among people with non- qi- deficiency constitution，there were 270 cases of male subjects，accounting for 30.51%，and 615 females，accounting for 69.49%. When compared the ratio of gender composition in people with qi- deficiency constitution with that in people with non- qideficiency constitution， differences were significant(P＜0.05). When compared the constituent ratios of various issues including desire for warm food and tea drinking，regular and quantitative diet and frequent intake of uncooked and cold food， as well as picky eaters in people with qi- deficiency constitution with those in people with non- qi- deficiency constitution， differences were significant(P＜0.05). Diet regularly and quantitatively， desire for warm food and tea drinking， and picky eaters were dietary factors effecting qi-deficiency constitution ， whose OR values were 0.73 ， 0.66 ， 1.89 and 1.59 respectively. Conclusion： Being picky about food and fond of drinking tea can lead to the formation of qi- deficiency constitution，while having a regular diet and being fond of warm food can slow down its formation.Diet regulation conduce to correcting the abnormal state of qi-deficiency constitution.