By way of literature review and questionnaire, this study applied a statistical analysis model to verify the relationship and influences among consuming behaviors such as consumers' life styles and consuming motives, and the purchase decision-making behaviors for canned coffee. This study adopted the five-point Likert Scale for investigation, and also carried out MANOVA (Multivariate Analysis) such as the Factor analysis, the Independent T Testing and the Canonical Correlation. The outcomes of the study were as follows: (a) Different life styles have a significant influence on the consuming number of the use and purchase decision-making behaviors; (b) Different consuming motives have a significant influence on the consuming number and the preference degree of the use and purchase decision-making behaviors; (c) There is a significantly mutual influence existing between the life styles and the consuming motives