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A 473-nm-laser-tuned whispering gallery mode(WGM)silica microbubble resonator integrated with iron oxide parti-cles is demonstrated in this paper.Owing to the photo-induced thermal effect,the WGM resonance wavelength could be tuned by adjusting laser power density of the illuminating light absorbed by the iron oxide particles.A wavelength tuning sensitivity of 0.03 nm/(mW·mm-2)and a tuning range of 0.18 nm are experimentally achieved.Moreover,the influence of ambient temperature on the WGM spectral characteristics is experimentally studied,and a sil-ica-microbubble-based reference scheme is demonstrated to compensate for the temperature-caused resonance wave-length variation.The proposed laser-tuned microresonator has great potential in optical modulation and high-precision optical filtering applications.