当前高中音乐校本课程中民族器乐演奏课程严重缺失，文章从民族器乐教学研究者的角度，对这一现象加以研究。通过采访和调查等研究的方法，对北京市部分高中发放调查问卷，从民族器乐课程内容、课程持续开设时长、学生学习动机及成果等维度，分析北京高校民族器乐课程现有的问题。并以北京市西城区北京师范大学附属实验中学的古琴演奏课程作为案例，分析其民族器乐演奏课程顺利开展的原因，提出高中校本课程中民族器乐演奏课程得以顺利开展的主要原因是教师教学目的的去理想化。针对高中学生的学业负担及民族器乐课程学习的完成度，将教学目的定为“普及化”，即从最基础最直观的角度使学生对某个民族乐器形成独立的认知。论文围绕民族器乐演奏“普及化”的教学目的，提出了简化入门和简化考查两个教学方法。

The present high school music school-based curriculum of ethnic instrumental music performance curriculum is seriously missing, this article from the perspective of ethnic instrumental music teaching researchers to study this phenomenon. By means of interview and investigation, questionnaires were distributed to some high schools in Beijing, and the guqin performance course of the experimental middle school affiliated to Beijing normal university in xicheng district, Beijing was taken as a case to analyze the reasons for the smooth development of its ethnic instrumental performance course. Through the investigation and analysis of the content of ethnic instrumental music course, the duration of the course, students' learning motivation and achievements, it is pointed out that the main reason for the smooth development of ethnic instrumental music performance course in the school-based curriculum of high school is the deidealization of teachers' teaching purpose. Aiming at the academic burden of senior high school students and the completion degree of ethnic instrumental music course learning, the teaching purpose is set as "popularization", that is, to enable students to form an independent cognition of a certain ethnic musical instrument from the most basic and intuitive perspective. Focusing on the teaching purpose of "popularizing" the performance of national instrumental music, this paper puts forward two teaching methods of simplified introduction and simplified examination.