“课堂诊断”是新课程背景下比较科学的课堂评价手段,它有助于解决课堂教学及课堂教学评价中的疑难和问题,促进课堂教学效果提高。本文将针对一节音乐鉴赏课,通过其课堂教学效果及运用“课堂诊断”手段进行改进后的效果比较,论述“课堂诊断”手段的重要性。 “Classroom diagnosis ” is a more scientific classroom evaluation method in the new curriculum background. It helps to solve the problems and problems in classroom teaching and classroom teaching evaluation and promotes the improvement of classroom teaching. This article will focus on a music appreciation class, through its classroom teaching effectiveness and the use of “classroom diagnosis ” means to improve the comparison, discusses the “classroom diagnosis ” means the importance.