With the deepening of the new curriculum reform, cultivating students' innovative thinking ability has become an important goal of junior high school English teaching. This paper aims to explore how to effectively cultivate students' creative thinking ability in junior high school English reading teaching. Through the in-depth study of relevant theories and the detailed analysis of specific teaching cases, this paper puts forward a series of effective teaching strategies and methods. These strategies include not only innovative activity design in classroom teaching, but also the improvement of extracurricular reading instruction and evaluation system. This paper holds that the cultivation of innovative thinking ability requires teachers to guide students to question, criticize and think independently in teaching, provide rich reading materials and diversified learning tasks, and stimulate students' learning interest and initiative. Through these measures, it is expected to provide useful reference for English reading teaching, so as to comprehensively improve students' comprehensive English ability and innovative thinking ability, and promote their all-round development.