Three string quartets are Arthur Honegger’s important chamber music works. From the perspective of composition technology theory, this paper takes his three string quartets as the research object, focuses on the field of pitch organization, and uses ontology analysis as the method, to carry out research from three aspects: chord materials, non -functional harmony and modern counterpoint techniques, in order to clarify the horizontal and vertical arrangement of pitch materials in his works, master the state of harmony movement, and then understand Arthur Honegger’s personalized music language.