This study aims to select better strategies for implementing teacher evaluation in junior high schools. Based on the fuzzy questionnaire, this study collected the data from teachers’ perceptions on importance and feasibility in related teacher evaluation strategies. The survey was targeted at 17 junior high school and 400 teachers in New Taipei city, Taiwan. The return rate of fuzzy questionnaires is 89.5%. This study transformed the interval data by way of fuzzy means, defuzzification, and fuzzy distance. The result reveals, for the purposes of teacher evaluation, the possible strategies are improving the quality of teaching and assisting teachers in their professional development; For the principles of teacher evaluation, the possible strategies including set the evaluation indicators according to teachers’ teaching fields and let teachers participate in related decision making; For related methods of teacher evaluation, the possible strategies are classroom observation, using teacher self-evaluation, and using teaching portfolio. The inappropriate strategy is evaluated by parent questionnaires. The study suggests ten strategies for improving the current teacher evaluation system.