This study provides a novel and effective way to fabricate perovskite-based saturable absorbers with enhanced stability and optical performance for Q-switched laser applications. Perovskite materials have become a hot topic in recent years because of their unique crystal structure, tunable direct band gap and broadband saturable absorption. The purpose of this paper is to investigate the feasibility and performance of perovskite-based saturable absorbers based onanodic alumina films for Q-switched laser applications.In this paper, perovskite-based (CH3NH3PbI3)/anodic alumina (AAO) saturable absorbers were prepared by a limited domain growth method. The existence of AAO films not only improved the stability of CH3NH3PbI3 in air, but also improved the optical properties of the saturable absorbers (SA). The modulation depth of CH3NH3PbI3AAO-SA was about 7.2%, and the saturation light intensity was about 9.65MW/cm2. By inserting CH3NH3PbI3AAO-SA into the resonator of Nd:YVO4 all-solid-state passive Q-switched laser, a stable Q-switched pulse with a center wavelength of 1 064.07 nm was obtained. When the pumping power was 7 W, the minimum duration of the laser output pulse was about 360 ns, and the average output power was 483 mW. At this time, the pulse repetition rate was 446 kHz, and the radio frequency (RF) spectrum signal-to-noise ratio (SNR) was 44 dB.Compared with previous studies, the perovskite-based saturable absorbers in this paper achieved a higher saturation intensity, a shorter pulse width and a lower SNR, demonstrating their superior performance for Q-switched laser applications.