By questionnaire survey, this study probes into university students' current cognition and attitude toward energy saving and carbon reduction and conducts path analysis. The research tool is self-designed "questionnaire on cognition and attitude toward energy saving and carbon reduction". First, 9 experts and scholars are invited to test content validity of questionnaires and conduct questionnaire pretest. The researcher revises the questionnaire, practices questionnaire survey, analyzes data and selects 685 university students by stratified cluster sampling. There are 617 valid questionnaires. Data obtained are analyzed by descriptive statistics, independent sample t test, One-way ANOVA and structural equation model.