The chemical experiment competition is helpful to cultivate students' comprehensive quality and innovation ability, promote the reform of experimental course system and teaching contents, and improve the quality of experimental teaching. This paper proposes a continuous cycle of teaching-competition-reform, which deeply integrates the multi-level chemistry experiment competition (1. skill competition, 2. design competition, 3. interest competition) with basic chemistry experiment teaching. The competition (skill competition) promotes learning, and competition (design competition, interest competition) promotes reform as well. Through the competition, students' attention to basic operations and enthusiasm for learning experimental knowledge have been enhanced. The goal of allowing students to independently structure experimental content and link theoretical knowledge has been achieved. It plays a positive guiding role in enlightening innovative thinking and training high-level undergraduate talents in chemistry.