The recent decade, Taiwan magazine market has a revolution; it changed from mass media to Segmentation. Constantly, women's magazine is the mainstream in fasion magazine market. But according to AC Nielsen's report, publishing and using of men's fashion magazine are increasing. Therefore, the study has to achieve the marketing target and let the brand live forever by development of brand image. And focus on brand image, life style, and demographic variables affecting consumer purchase behavior. Investigate the connection between each variable by using factor analysis, chi square test, multiple regression, and discriminant analysis. The study determines that brand image, life style, and demographic variables indeed affect consumer purchase behavior, but not all of the calculations are conspicuous. Therefore, when men's fashion magazine developing brand image, it should focus on the conspicuous calculations for fear of wasting resources and it can also achieve the marketing target.