The 2022 edition of"Art Curriculum Standards for Compulsory Education"indicates the status of core literacy cultivation in art curriculum,and cultivates students'ability of aesthetic perception,artistic expres-sion,creative practice,and cultural understanding,so as to promote the cultivation of students'core literacy.This paper proposes the design and development of blended teaching music micro-courses in primary and secondary schools according to the social status.As an auxiliary teaching instrument at present,the designed micro-course is oriented by core literacy,and is suitable for online teaching,offline teaching and online-offline blended teaching.