Teaching is one of the core works in universities, and the comprehensive evaluation on teachers' teaching quality has a vital significance to improve universities' teaching quality. In this paper, the problem of comprehensive evaluation on university teachers' teaching quality under fuzzy environment is studied. Concretely, a new evaluation system for teaching quality evaluation is established, and a fuzzy multi‐attribute decision making method based on linguistic 2‐tuple is presented to evaluate the teaching quality for all alternative university teachers. Finally, a numerical example is given to demonstrate the practicality and effectiveness of the proposed method.