Vanadium dioxide \left({\text{VO}}_{\text{2}}\right) and vanadium pentoxide \left({\text{V 2}}_{}{\text{O 5}}_{}\right) thin films are irradiated by a near-infrared continuous-wave laser beam and the dynamic optical limiting performance is measured. The temperature varying with time of the films induced by a laser beam is also recorded by an IR thermal sensor. Under the irradiation of a laser beam with an intensity of 255\text{W}/{\text{cm}}^{\text{2}} and a spot diameter of 2\text{\hspace{0.17em} mm} , the laser beam transmittance of the {\text{VO}}_{\text{2}} film decreases from 47\% before phase transition to 28\% after phase transition, and the response time is \sim 200\text{\hspace{0.17em} ms} ; the laser beam transmittance of the {\text{V 2}}_{}{\text{O 5}}_{} film decreases from 51\% before phase transition to 24\% after phase transition, and the response time is \sim 40\text{\hspace{0.17em} ms} . The optical limiting is realized by this laser heating-induced phase transition.