To improve the stability of Pt nanoparticles, the redox cycles with oxidation at 800 °C and reduction at 250 °C for three times were adopted on the Mn-mullite doped Pt-based catalysts (Pt-YMO/SA-Red) to rearrange the Pt atoms. The light-off temperature toward CO/C 3 H 6 /NO oxidation on Pt-YMO/SA-Red decreases by 20–60 °C, and the NO maximum conversion is improved by 27 % than the catalyst with only oxidation treatment at 800 °C (Pt-YMO/SA-Oxi). Characterization results verify that the interaction of Pt with YMn 2 O 5 on Pt-YMO/SA-Red is reinforced via redox cyclic treatment to inhibit the aggregation of platinum particles and promote the formation of active oxygen species, in comparison to Pt-YMO/SA-Oxi. The easier active oxygen regeneration and more active platinum sites contribute to the excellent catalytic performances and stability. In addition, the mechanism for the high CO/C 3 H 6 /NO oxidation performance are analyzed via the detected reaction intermediate species. [Display omitted] • Redox cyclic treatment could strengthen the interaction of Pt with YMn 2 O 5. • Oxygen vacancies anchor platinum sites for reduction at low temperature (250 °C). • The ability of oxygen regeneration is improved for the redox cyclic catalyst. • The formation of bridged/chelating nitrates contribute to NO catalytic performance. • Platinum sites and active oxygen species are favor of the low temperature activity. [ABSTRACT FROM AUTHOR]