One main objective of art education is to foster students' art evaluation as well as their creative thinking ability. Engaging students in artwork sharing and peer feedback is a frequently adopted approach in school settings. However, most students have difficulties providing constructive comments during the peer-feedback process. To address this issue, a mobile-based progressive peer feedback approach was proposed to facilitate primary school students' creative thinking performance, metacognitive awareness, and learning attitude. A quasi-experiment was implemented with two intact classes in a primary school in northern Taiwan to investigate the effect of the proposed approach. One class was assigned to be the experimental group (n = 20) which learned with the proposed progressive peer-feedback scaffolding approach, and the other was the control group (n = 20) which learned with the conventional feedback approach. The findings indicated that the proposed progressive peer feedback approach had a positive effect on the primary school students' creative art thinking. The experimental group students' metacognitive awareness was also significantly enhanced. Besides, the students from the experimental group considered that the proposed progressive peer feedback approach was beneficial to helping them critically reflect on their drawings, and facilitated their understanding of how to improve the integrity of their drawings.