Significant figures are crutial to experiment courses of college chemistry so that students could understand figures and be able to regulate significant figures in their daily learning and research work,and could know the relationship between numbers and effective measurement error,and could form good digital recording habits.Driven by the main problems about significant figures in experiment courses of college chemistry,This paper puts forward corresponding solutions to the problems,and establishes perfect corresponding teaching solutions which proved to achieve the initial goals.It is also an important way for students to strictly record and calculate data according to the requirements of significant figures in their researches.