Self-efficacy is one of the important factors influencing autonomous learning of college English. The paper, based on questionnaires, adopts SPSS13 edition software, which is used for the analysis of social scientific digitals, to make a research for autonomous learning of college English among 230 non-English majors, and reaches a conclusion that self-efficacy influences learners of degrees in variety: Self-efficacy influences learners' choice of tasks, influences the efforts paid and spirits controlled, and the influences self-efficacy has ...