Abstract: By means of open-ended survey, critical incident interview and theorist analysis, this paper established the construction of teacher performance. Then the authors tested the construction of students’ evaluations on teacher performance by confirmative factor analysis. The results showed that teacher performance included 6 first-stairs factors: professional ethics, job conscientiousness, assisting and cooperation, teaching efficiency, teaching value and teacher-student interaction. These 6 factors form two second-stairs factors, the first three constituted contextual performance, and the others constituted task performance

Key words: teacher performance, contextual performance, task performance