The gap between the client (or customer) and the designer who are concerned with design quality of design works often results from two common causes. One is that the requests of the client (customer) on design quality are unclear. The other is that the designer cannot state clearly how he or she judges the quality of the design works. With the increasing desire for turning an abstract description into a concrete way, the study aims to develop the framework of the contents of design quality on commercial graphic design through two stages: confirmation and verification. At the confirmation stage, this study classified commercial graphic design into four categories: advertising design, packaging design, identity design and editorial design based on the findings of design expert interviews through the Delphi Method. As for the ”appropriate” elements of design quality under each category, the study found that advertising design consists of 13 elements, while there are 18 elements for packaging design, 11 elements for identity design, and 11 elements for editorial design. At the verification stage, as for the verification of specific design works recommended by design experts, the results revealed that advertising design includes 12 ”full verification” elements of design quality, while there are 16 ”full verification” elements for packaging design, 10 ”full verification” elements for identity design, and 9 ”full verification” elements for editorial design. Furthermore, this study divided all ”full verification” elements of design quality on each category of commercial graphic design into three types: ”core element,” ”common element,” and ”individual element.” Among them, the core elements of design quality on commercial graphic design are ”aesthetic,” ”differentiation,” ”originality,” and ”communication.”